Tag Archives: Spectre

Complete List Of CPUs Vulnerable To Meltdown / Spectre Rev. 8.0

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The speculative execution CPU bug that literally kneecapped Intel, also affects many AMD and ARM processors. This means BILLIONS of CPUs around the world, including those powering smartphones, are affected by Meltdown and/or Spectre.

Our article Everything On The Meltdown + Spectre CPU Flaws! summarises the key details of the speculative execution bug, and what we can do about it. This guide is to help those who want a full list of affected CPUs. Because we intend this to be an exhaustive list, we split it into multiple sections.

Article Update History

Click here for the Article Update History

Updated @ 2018-03-07 : Added a new list of 5 IBM z/Architecture CPUs. Added a new list of 22 VIA desktop and mobile CPUs. Added 1 ARM mobile CPU, 1 Intel server CPU, and 1 Intel mobile CPU. Also added 20 mobile SoCs, 9 digital TV or media player SoCs, and 43 industrial SoCs.

Updated @ 2018-02-15 : Added 96 Intel server CPUs, 91 Intel desktop CPUs, and 127 Intel mobile CPUs.

Updated @ 2018-02-07 : Added 128 AMD server CPUs, 11 AMD workstation CPUs, 128 AMD desktop CPUs, and 59 AMD mobile CPUs.

Updated @ 2018-02-02 : Added 11 Intel server CPUs, 96 AMD server CPUs, 168 AMD desktop CPUs, 77 AMD mobile CPUs, 10 IBM POWER CPUs, 9 HiSilicon Kirin mobile SoCs, 10 MediaTek mobile SOCs, 4 MediaTek digital TV SoCs, and 6 NVIDIA devices to the lists of vulnerable CPUs.

Updated @ 2018-01-14 : Added 416 Intel server CPUs, 8 Intel desktop CPUs, and 29 Intel mobile CPUs to the lists of vulnerable CPUs. Added a new list of 51 Intel mobile SoCs.

Updated @ 2018-01-12 : Added 71 AMD server CPUs, 71 AMD desktop CPUs, 29 AMD mobile CPUs and 3 AMD server SoCs based on a vulnerable ARM CPU. Also added a table summarising the number of vulnerable processors.

Updated @ 2018-01-11 : Added 18 Intel desktop CPUs and 165 Intel server / workstation CPUs. Also added a list of vulnerable Apple iOS devices, and expanded the list of vulnerable mobile SoCs used by smartphones.

Originally posted @ 2018-01-08

What Are Meltdown And Spectre?

Meltdown and Spectre are two exploits that take advantage of three variants of the speculative execution bug that affects billions of CPUs around the world.

The Spectre exploit targeted Variants 1 and 2, while the Meltdown exploit targets Variant 3, of the CPU bug.

For more information on the speculative execution bug, and the Meltdown / Spectre exploits, please read Everything On The Meltdown + Spectre CPU Flaws!

The CPUs Vulnerable To Meltdown / Spectre Updated!

For easy reference, we divided the affected CPUs by Company (arranged ALPHABETICALLY – no conspiracy, we promise), and subsequently by Segment (Workstation / Desktop / Mobile), or affected variants.

As of Revision 8.0, we believe we have covered all of the affected AMD, Apple, ARM, IBM, Intel and VIA CPUs. But we will add more CPUs (and devices) as and when they’re noted to be vulnerable to the Meltdown and Spectre exploits.

Note : It’s arguable that all CPUs that uses speculative execution to any degree are potentially vulnerable to Meltdown or Spectre or a future exploit. We will only focus on CPUs that are confirmed to be vulnerable to Meltdown or Spectre.

Vulnerable CPUs By The Numbers Updated!

Here is a quick summary of the number of CPUs vulnerable to Meltdown or Spectre, according to the company, and the type of processor.

Company	Spectre 1	Spectre 2	Meltdown
AMD	295 Server CPUs 42 Workstation CPUs 396 Desktop CPUs 208 Mobile CPUs	295 Server CPUs 42 Workstation CPUs 396 Desktop CPUs 208 Mobile CPUs	None
Apple	13 Mobile SoCs	13 Mobile SoCs	13 Mobile SoCs
ARM	10 Mobile CPUs 3 Server SoCs	10 Mobile CPUs 3 Server SoCs	4 Mobile CPUs 3 Server SoCs
IBM	5 z/Architecture CPUs 10 POWER CPUs	5 z/Architecture CPUs 10 POWER CPUs	5 z/Architecture CPUs 10 POWER CPUs
Intel	733 Server / Workstation CPUs 443 Desktop CPUs 584 Mobile CPUs 51 Mobile SoCs	733 Server / Workstation CPUs 443 Desktop CPUs 584 Mobile CPUs 51 Mobile SoCs	733 Server / Workstation CPUs 443 Desktop CPUs 584 Mobile CPUs 51 Mobile SoCs
VIA	10 Desktop CPUs 12 Mobile CPUs	10 Desktop CPUs 12 Mobile CPUs	10 Desktop CPUs 12 Mobile CPUs
Total	2816 CPUs	2816 CPUs	1868 CPUs

Meltdown + Spectre Reading Suggestions

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The AMD Server CPUs Vulnerable To Spectre

Affected Variants : AMD CPUs are affected by both Variants 1 and 2 of the speculative execution CPU bug. Colloquially, many people refer to them as Spectre 1 and Spectre 2.

AMD Server CPUs Vulnerable To Spectre

AMD Naples (2017)

AMD EPYC 7601
AMD EPYC 7551
AMD EPYC 7551P
AMD EPYC 7501
AMD EPYC 7451
AMD EPYC 7401
AMD EPYC 7401P
AMD EPYC 7351
AMD EPYC 7351P
AMD EPYC 7301
AMD EPYC 7281
AMD EPYC 7251

AMD Toronto (2017)

AMD Opteron X3421
AMD Opteron X3418
AMD Opteron X3416

AMD Kyoto (2013)

AMD Opteron X2170
AMD Opteron X2150
AMD Opteron X1150

AMD Abu Dhabi (2012)

AMD Opteron 6386 SE
AMD Opteron 6380
AMD Opteron 6378
AMD Opteron 6370P
AMD Opteron 6366 HE
AMD Opteron 6348
AMD Opteron 6344
AMD Opteron 6338P
AMD Opteron 6328
AMD Opteron 6320
AMD Opteron 6308

AMD Seoul (2012)

AMD Opteron 4386
AMD Opteron 4376 HE
AMD Opteron 43GK HE
AMD Opteron 4365 EE
AMD Opteron 4340
AMD Opteron 4334
AMD Opteron 4332 HE
AMD Opteron 4310 EE
AMD Opteron 43CX EE

AMD Delhi (2012)

AMD Opteron 3380
AMD Opteron 3365
AMD Opteron 3350 HE
AMD Opteron 3320 EE

AMD Zurich (2012)

AMD Opteron 3280
AMD Opteron 3260 HE
AMD Opteron 3250 HE

AMD Interlagos (2011)

AMD Opteron 6284 SE
AMD Opteron 6282 SE
AMD Opteron 6278
AMD Opteron 6276
AMD Opteron 6274
AMD Opteron 6272
AMD Opteron 6262 HE
AMD Opteron 6238
AMD Opteron 6234
AMD Opteron 6230 HE
AMD Opteron 6220
AMD Opteron 6212
AMD Opteron 6204

AMD Valencia (2011)

AMD Opteron 4284
AMD Opteron 4280
AMD Opteron 4276 HE
AMD Opteron 4274 HE
AMD Opteron 42MX HE
AMD Opteron 4256 EE
AMD Opteron 4240
AMD Opteron 4238
AMD Opteron 4234
AMD Opteron 4230 HE
AMD Opteron 4228 HE
AMD Opteron 4226
AMD Opteron 42DX EE

AMD Magny-Cours (2010)

AMD Opteron 6180 SE
AMD Opteron 6176 SE
AMD Opteron 6176
AMD Opteron 6174
AMD Opteron 6172
AMD Opteron 6168
AMD Opteron 6164 HE
AMD Opteron 6140
AMD Opteron 6136
AMD Opteron 6134
AMD Opteron 6132 HE
AMD Opteron 6128
AMD Opteron 6128 HE
AMD Opteron 61QS
AMD Opteron 61KS
AMD Opteron 6124 HE

AMD Lisbon (2010)

AMD Opteron 4184
AMD Opteron 4180
AMD Opteron 4176 HE
AMD Opteron 4174 HE
AMD Opteron 4171 HE
AMD Opteron 4170 HE
AMD Opteron 41KX HE
AMD Opteron 4164 EE
AMD Opteron 4162 EE
AMD Opteron 41GL EE
AMD Opteron 4133
AMD Opteron 4130
AMD Opteron 4122
AMD Opteron 41QS HE
AMD Opteron 41LE HE

AMD Istanbul (2009)

AMD Opteron 8439 SE
AMD Opteron 8435
AMD Opteron 8431
AMD Opteron 8425 HE
AMD Opteron 8423
AMD Opteron 8419
AMD Opteron 8419 EE
AMD Opteron 2439 SE
AMD Opteron 2435
AMD Opteron 2431
AMD Opteron 2427
AMD Opteron 2425 HE
AMD Opteron 2423 HE
AMD Opteron 2419
AMD Opteron 2419 EE

AMD Suzuka (2009)

AMD Opteron 1389
AMD Opteron 1385
AMD Opteron 1381
AMD Opteron 13QS HE
AMD Opteron 13KS EE

AMD Shanghai (2009)

AMD Budapest (2008)

AMD Opteron 1356
AMD Opteron 1354
AMD Opteron 1352

AMD Barcelona (2007)

AMD Opteron 8360 SE
AMD Opteron 8357 SE
AMD Opteron 8356
AMD Opteron 8354
AMD Opteron 8352
AMD Opteron 8350
AMD Opteron 8350 HE
AMD Opteron 8347
AMD Opteron 8347 HE
AMD Opteron 8346 HE

AMD Santa Rosa (2006)

AMD Santa Ana (2006)

AMD Opteron 1224 SE
AMD Opteron 1222 SE
AMD Opteron 1222
AMD Opteron 1220 SE
AMD Opteron 1220
AMD Opteron 1218
AMD Opteron 1218 HE
AMD Opteron 1216
AMD Opteron 1216 HE
AMD Opteron 1214
AMD Opteron 1214 HE
AMD Opteron 1212
AMD Opteron 1212 HE
AMD Opteron 1210
AMD Opteron 1210 HE
AMD Opteron 1210 EE

AMD Egypt (2005)

AMD Opteron 890
AMD Opteron 885
AMD Opteron 880
AMD Opteron 875
AMD Opteron 875 HE
AMD Opteron 870
AMD Opteron 870 HE
AMD Opteron 865
AMD Opteron 865 HE
AMD Opteron 860 HE

AMD Italy (2005)

AMD Opteron 290
AMD Opteron 285
AMD Opteron 280
AMD Opteron 275
AMD Opteron 275 HE
AMD Opteron 270
AMD Opteron 270 HE
AMD Opteron 265
AMD Opteron 265 HE
AMD Opteron 260 HE

AMD Denmark (2005)

AMD Opteron 190
AMD Opteron 185
AMD Opteron 180
AMD Opteron 175
AMD Opteron 170
AMD Opteron 165

AMD Athens (2004)

AMD Opteron 856
AMD Opteron 854
AMD Opteron 852
AMD Opteron 850
AMD Opteron 850 HE
AMD Opteron 848
AMD Opteron 848 HE
AMD Opteron 846
AMD Opteron 846 HE
AMD Opteron 844
AMD Opteron 842

AMD Troy (2004)

AMD Opteron 256
AMD Opteron 254
AMD Opteron 252
AMD Opteron 250
AMD Opteron 250 HE
AMD Opteron 248
AMD Opteron 248 HE
AMD Opteron 246
AMD Opteron 246 HE
AMD Opteron 244
AMD Opteron 242

AMD Venus (2004)

AMD Opteron 156
AMD Opteron 154
AMD Opteron 152
AMD Opteron 150
AMD Opteron 148
AMD Opteron 148 HE
AMD Opteron 146
AMD Opteron 144
AMD Opteron 142

AMD Sledgehammer (2003)

AMD Opteron 850
AMD Opteron 848
AMD Opteron 846
AMD Opteron 846 HE
AMD Opteron 844
AMD Opteron 842
AMD Opteron 840
AMD Opteron 840 EE
AMD Opteron 250
AMD Opteron 248
AMD Opteron 246
AMD Opteron 246 HE
AMD Opteron 244
AMD Opteron 242
AMD Opteron 240
AMD Opteron 240 EE
AMD Opteron 150
AMD Opteron 148
AMD Opteron 146
AMD Opteron 146 HE
AMD Opteron 144
AMD Opteron 142
AMD Opteron 140
AMD Opteron 140 EE

Next Page > AMD Workstation & Desktop CPUs Vulnerable To Spectre

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The AMD Workstation CPUs Vulnerable To Spectre

Affected Variants : AMD CPUs are affected by both Variants 1 and 2 of the speculative execution CPU bug. Colloquially, many people refer to them as Spectre 1 and Spectre 2. They are not vulnerable to Meltdown.

AMD Summit Ridge (2017)

AMD Ryzen Threadripper 1950X
AMD Ryzen Threadripper 1920X
AMD Ryzen Threadripper 1900X

AMD Vishera (2012)

AMD FX-9590
AMD FX-9370
AMD FX-8370E
AMD FX-8370
AMD FX-8350
AMD FX-8320E
AMD FX-8320
AMD FX-8310
AMD FX-8300
AMD FX-6350
AMD FX-6300
AMD FX-6200
AMD FX-4350
AMD FX-4320
AMD FX-4300

AMD Zambezi (2011)

AMD FX-8170
AMD FX-8150
AMD FX-8140
AMD FX-8120
AMD FX-8100
AMD FX-6130
AMD FX-6120
AMD FX-6100
AMD FX-4170
AMD FX-4150
AMD FX-4130
AMD FX-4120
AMD FX-4100

AMD Windsor (2006)

AMD Athlon 64 FX-74
AMD Athlon 64 FX-72
AMD Athlon 64 FX-70
AMD Athlon 64 FX-62

AMD Toledo (2005)

AMD Athlon 64 FX-60

AMD San Diego (2005)

AMD Athlon 64 FX-57
AMD Athlon 64 FX-55

AMD Clawhammer (2004)

AMD Athlon 64 FX-55
AMD Athlon 64 FX-53

AMD Sledgehammer (2003)

AMD Athlon 64 FX-53
AMD Athlon 64 FX-51

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AMD Desktop CPUs Vulnerable To Spectre

Affected Variants : AMD CPUs are affected by both Variants 1 and 2 of the speculative execution CPU bug. Colloquially, many people refer to them as Spectre 1 and Spectre 2. They are not vulnerable to Meltdown.

AMD Raven Ridge (2018)

AMD Ryzen 5 2400G
AMD Ryzen 5 2200G

AMD Summit Ridge (2017)

AMD Ryzen 7 1800X
AMD Ryzen 7 1700X
AMD Ryzen 7 1700
AMD Ryzen 5 1600X
AMD Ryzen 5 1600
AMD Ryzen 5 1500X
AMD Ryzen 5 1400
AMD Ryzen 3 1300X
AMD Ryzen 3 1200

AMD Bristol Ridge (2016)

AMD PRO A12-9800
AMD A12-9800
AMD PRO A12-9800E
AMD A12-9800E
AMD PRO A10-9700
AMD A10-9700
AMD PRO A10-9700E
AMD A10-9700E
AMD PRO A8-9600
AMD A8-9600
AMD A6-9550
AMD PRO A6-9500
AMD A6-9500
AMD PRO A6-9500E
AMD A6-9500E
AMD Athlon X4 970
AMD Athlon X4 950
AMD Athlon X4 940

AMD Carrizo (2015)

AMD Athlon X4 845
AMD Athlon X4 835

AMD Kaveri (2014)

AMD A10-7890K
AMD A10-7870K
AMD A10-7860K
AMD A10 PRO-7850B
AMD A10-7850K
AMD A10 PRO-7800B
AMD A10-7800
AMD A10-7700K
AMD A8-7670K
AMD A8-7650K
AMD A8 PRO-7600B
AMD A8-7600
AMD A6-7470K
AMD A6-7400K
AMD A6 PRO-7400B
AMD A6 PRO-7350B
AMD FX-770K
AMD Athlon X4 880K
AMD Athlon X4 870K
AMD Athlon X4 860K
AMD Athlon X4 840
AMD Athlon X2 450

AMD Kabini (2014)

AMD Athlon 5370
AMD Athlon 5350
AMD Athlon 5150
AMD Sempron 3850
AMD Sempron 2650

AMD Richland (2013)

AMD A10-6800K
AMD A10-6800B
AMD A10-6790K
AMD A10-6790B
AMD A10-6700
AMD A10-6700T
AMD A8-6600K
AMD A8-6500B
AMD A8-6500
AMD A8-6500T
AMD A6-6420K
AMD A6-6420B
AMD A6-6400K
AMD A6-6400B
AMD A4 PRO-7300B
AMD A4-7300
AMD A4-6320B
AMD A4-6320
AMD A4-6300B
AMD A4-6300
AMD A4-4020
AMD A4-4000
AMD FX-670K
AMD Athlon X4 760K
AMD Athlon X4 750
AMD Athlon X2 370K
AMD Athlon X2 350
AMD Sempron X2 250

AMD Trinity (2012)

AMD A10-5800K
AMD A10-5800B
AMD A10-5700
AMD A8-5600K
AMD A8-5500B
AMD A8-5500
AMD A6-5400K
AMD A6-5400B
AMD A4-5300B
AMD A4-5300
AMD FirePro A320
AMD FirePro A300
AMD Athlon X4 750K
AMD Athlon X4 740
AMD Athlon X2 340
AMD Sempron X2 240

AMD Llano (2011)

AMD A8-3870K
AMD A8-3850
AMD A8-3820
AMD A8-3800
AMD A6-3670K
AMD A6-3650
AMD A6-3620
AMD A6-3600
AMD A4-3420
AMD A4-3400
AMD A4-3330
AMD E2-3200
AMD Athlon II X4 651K
AMD Athlon II X4 651
AMD Athlon II X4 641
AMD Athlon II X4 638
AMD Athlon II X4 631
AMD Athlon II X2 221
AMD Sempron X2 198

AMD Propus (2011)

AMD Phenom II X4 850
AMD Phenom II X4 840
AMD Athlon II X4 650
AMD Athlon II X4 645
AMD Athlon II X4 640
AMD Athlon II X4 635
AMD Athlon II X4 630
AMD Athlon II X4 620
AMD Athlon II X4 620e
AMD Athlon II X4 615e
AMD Athlon II X4 610e
AMD Athlon II X4 605e
AMD Athlon II X4 600e

AMD Regor (2011)

AMD Phenom II X2 521
AMD Phenom II X2 511
AMD Athlon II X2 B30
AMD Athlon II X2 280
AMD Athlon II X2 B28
AMD Athlon II X2 270
AMD Athlon II X2 270u
AMD Athlon II X2 265
AMD Athlon II X2 260
AMD Athlon II X2 260u
AMD Athlon II X2 B26
AMD Athlon II X2 255
AMD Athlon II X2 250e
AMD Athlon II X2 250
AMD Athlon II X2 250u
AMD Athlon II X2 245e
AMD Athlon II X2 245
AMD Athlon II X2 240e
AMD Athlon II X2 240
AMD Athlon II X2 B24
AMD Athlon II X2 235e
AMD Athlon II X2 220
AMD Athlon II X2 B22
AMD Athlon II X2 215
AMD Athlon II X2 210e
AMD Sempron 190
AMD Sempron 180

AMD Zosma (2010)

AMD Phenom II X4 970 Black Edition
AMD Phenom II X4 960T Black Edition
AMD Phenom II X4 960T
AMD Phenom II X4 840T
AMD Phenom II X4 650T
AMD Athlon II X4 640

AMD Thuban (2010)

AMD Phenom II X6 1100T Black Edition
AMD Phenom II X6 1090T Black Edition
AMD Phenom II X6 1075T Black Edition
AMD Phenom II X6 1075T
AMD Phenom II X6 1065T
AMD Phenom II X6 1055T
AMD Phenom II X6 1045T
AMD Phenom II X6 1035T

AMD Sargas (2009)

AMD Athlon II 170u
AMD Athlon II 160u
AMD Sempron 150
AMD Sempron 145
AMD Sempron 140
AMD Sempron 130

AMD Deneb (2009)

AMD Phenom II 42 TWKR
AMD Phenom II X4 980 Black Edition
AMD Phenom II X4 975 Black Edition
AMD Phenom II X4 970 Black Edition
AMD Phenom II X4 965 Black Edition
AMD Phenom II X4 B99
AMD Phenom II X4 955 Black Edition
AMD Phenom II X4 955
AMD Phenom II X4 B97
AMD Phenom II X4 945
AMD Phenom II X4 940 Black Edition
AMD Phenom II X4 B95
AMD Phenom II X4 925
AMD Phenom II X4 920
AMD Phenom II X4 B93
AMD Phenom II X4 910e
AMD Phenom II X4 910
AMD Phenom II X4 905e
AMD Phenom II X4 900e
AMD Phenom II X4 830
AMD Phenom II X4 820
AMD Phenom II X4 810
AMD Phenom II X4 805

AMD Heka (2009)

AMD Phenom II X3 B77
AMD Phenom II X3 740 Black Edition
AMD Phenom II X3 B75
AMD Phenom II X3 720 Black Edition
AMD Phenom II X3 B73
AMD Phenom II X3 720
AMD Phenom II X3 715 Black Edition
AMD Phenom II X3 710
AMD Phenom II X3 705e
AMD Phenom II X3 700e

AMD Callisto (2009)

AMD Phenom II X2 570 Black Edition
AMD Phenom II X2 B60
AMD Phenom II X2 565 Black Edition
AMD Phenom II X2 B59
AMD Phenom II X2 560 Black Edition
AMD Phenom II X2 555 Black Edition
AMD Phenom II X2 B57
AMD Phenom II X2 550 Black Edition
AMD Phenom II X2 550
AMD Phenom II X2 B55
AMD Phenom II X2 545
AMD Phenom II X2 B53

AMD Rana (2009)

AMD Athlon II X3 460
AMD Athlon II X3 455
AMD Athlon II X3 450
AMD Athlon II X3 445
AMD Athlon II X3 440
AMD Athlon II X3 435
AMD Athlon II X3 425e
AMD Athlon II X3 425
AMD Athlon II X3 420e
AMD Athlon II X3 415e
AMD Athlon II X3 405e
AMD Athlon II X3 400e

AMD Agena (2008)

AMD Phenom X4 9950 Black Edition
AMD Phenom X4 9850 Black Edition
AMD Phenom X4 9850B
AMD Phenom X4 9850
AMD Phenom X4 9750B
AMD Phenom X4 9750
AMD Phenom X4 9650
AMD Phenom X4 9600B
AMD Phenom X4 9600
AMD Phenom X4 9550
AMD Phenom X4 9500
AMD Phenom X4 9450
AMD Phenom X4 9350
AMD Phenom X4 9150e
AMD Phenom X4 9100e

AMD Toliman (2008)

AMD Phenom X3 8850
AMD Phenom X3 8750 Black Edition
AMD Phenom X3 8750
AMD Phenom X3 8750B
AMD Phenom X3 8650
AMD Phenom X3 8600B
AMD Phenom X3 8600
AMD Phenom X3 8550
AMD Phenom X3 8450e
AMD Phenom X3 8450
AMD Phenom X3 8400
AMD Phenom X3 8250e

AMD Kuma (2008)

AMD Athlon X2 7850 Black Edition
AMD Athlon X2 7750 Black Edition
AMD Athlon X2 7550
AMD Athlon X2 7450
AMD Athlon X2 6500 Black Edition

AMD Brisbane (2007)

AMD Lima (2007)

AMD Athlon 64 3800+
AMD Athlon 64 3500+
AMD Athlon 64 3100+
AMD Athlon 64 2850e
AMD Athlon 64 2600+
AMD Athlon 64 2650e
AMD Athlon 64 2000+
AMD Athlon LE-1660
AMD Athlon LE-1640
AMD Athlon LE-1640B

AMD Sparta (2006)

AMD Sempron LE-1300
AMD Sempron LE-1250
AMD Sempron LE-1200
AMD Sempron LE-1150
AMD Sempron LE-1100

AMD Windsor (2006)

AMD Athlon 64 X2 6400+ Black Edition
AMD Athlon 64 X2 6000+
AMD Athlon 64 X2 5600+
AMD Athlon 64 X2 5400+
AMD Athlon 64 X2 5200+
AMD Athlon 64 X2 5000+
AMD Athlon 64 X2 4800+
AMD Athlon 64 X2 4600+
AMD Athlon 64 X2 4400+
AMD Athlon 64 X2 4200+
AMD Athlon 64 X2 4000+
AMD Athlon 64 X2 3800+
AMD Athlon 64 X2 3600+

AMD Manila (2006)

AMD Sempron 3800+
AMD Sempron 3600+
AMD Sempron 3500+
AMD Sempron 3400+
AMD Sempron 3200+
AMD Sempron 3000+
AMD Sempron 2800+

AMD Orleans (2006)

AMD Athlon 64 4000+
AMD Athlon 64 3800+
AMD Athlon 64 3500+
AMD Athlon 64 3200+
AMD Athlon 64 3000+
AMD Athlon 64 LE-1640
AMD Athlon 64 LE-1620
AMD Athlon 64 LE-1600

AMD Toledo (2005)

AMD Athlon 64 X2 4800+
AMD Athlon 64 X2 4600+
AMD Athlon 64 X2 4400+
AMD Athlon 64 X2 4200+
AMD Athlon 64 X2 4000+
AMD Athlon 64 X2 3800+
AMD Athlon 64 X2 3700+

AMD Palermo (2005)

AMD Sempron 3500+
AMD Sempron 3400+
AMD Sempron 3300+
AMD Sempron 3200+
AMD Sempron 3100+
AMD Sempron 3000+
AMD Sempron 2800+
AMD Sempron 2600+
AMD Sempron 2500+

AMD Manchester (2005)

AMD Athlon 64 X2 4600+
AMD Athlon 64 X2 4200+
AMD Athlon 64 X2 3800+
AMD Athlon 64 X2 3600+
AMD Athlon 64 X2 3500+
AMD Athlon 64 X2 3200+

AMD San Diego (2005)

AMD Athlon 64 4000+
AMD Athlon 64 3700+
AMD Athlon 64 3500+

AMD Venice (2005)

AMD Athlon 64 3800+
AMD Athlon 64 3500+
AMD Athlon 64 3400+
AMD Athlon 64 3200+
AMD Athlon 64 3000+
AMD Athlon 64 1500+

AMD Winchester (2004)

AMD Athlon 64 3500+
AMD Athlon 64 3200+
AMD Athlon 64 3000+

AMD Paris (2004)

AMD Sempron 3100+
AMD Sempron 3000+

AMD Clawhammer (2004)

AMD Athlon 64 4000+
AMD Athlon 64 3800+
AMD Athlon 64 3700+
AMD Athlon 64 3600+
AMD Athlon 64 3500+
AMD Athlon 64 3400+
AMD Athlon 64 3200+
AMD Athlon 64 3000+
AMD Athlon 64 2800+

AMD Newcastle (2003)

AMD Athlon 64 3800+
AMD Athlon 64 3500+
AMD Athlon 64 3400+
AMD Athlon 64 3300+
AMD Athlon 64 3200+
AMD Athlon 64 3000+
AMD Athlon 64 2800+

Next Page > AMD Mobile CPUs Vulnerable To Spectre

Support Tech ARP!

If you like our work, you can help support our work by visiting our sponsors, participating in the Tech ARP Forums, or even donating to our fund. Any help you can render is greatly appreciated!

AMD Mobile CPUs Vulnerable To Spectre

Affected Variants : AMD CPUs are affected by both Variants 1 and 2 of the speculative execution CPU bug. Colloquially, many people refer to them as Spectre 1 and Spectre 2. They are not vulnerable to Meltdown.

AMD Raven Ridge (2017)

AMD Ryzen 7 2700U
AMD Ryzen 5 2500U
AMD Ryzen 3 2300U
AMD Ryzen 3 2200U

AMD Bristol Ridge (2016)

AMD FX-9830P
AMD Pro A12-9830B
AMD FX-9800P
AMD Pro A12-9800B
AMD A12-9730P
AMD Pro A10-9730B
AMD A12-9720P
AMD A12-9700P
AMD Pro A10-9700B
AMD A10-9630P
AMD Pro A8-9630B
AMD A10-9620P
AMD A10-9600P
AMD Pro A8-9600B
AMD Pro A6-9500B

AMD Stoney Ridge (2015)

AMD A9-9430
AMD A9-9420
AMD A9-9410
AMD A9-9400
AMD A6-9220
AMD A6-9210
AMD A6-9200
AMD A6-9200e
AMD A4-9120
AMD E2-9010
AMD E2-9000
AMD E2-9000e

AMD Carrizo (2015)

AMD A10-8780P
AMD Pro A12-8800B
AMD FX-8800P
AMD Pro A10-8700B
AMD A10-8700P
AMD Pro A8-8600B
AMD A8-8600P
AMD Pro A6-8500B
AMD A6-8500P
AMD A8-7410
AMD A6-7310
AMD A4-7210
AMD E2-7110
AMD E1-7010

AMD Kaveri (2014)

AMD FX-7600P
AMD FX-7500
AMD A10-7400P
AMD Pro A10-7350B
AMD A10-7300
AMD A8-7200P
AMD Pro A8-7150B
AMD A8-7100
AMD Pro A6-7050B
AMD A6-7000

AMD Richland (2013)

AMD A10-5757M
AMD A10-5750M
AMD A10-5745M
AMD A8-5557M
AMD A8-5550M
AMD A8-5545M
AMD A6-5357M
AMD A6-5350M
AMD A6-5345M
AMD A4-5150M
AMD A4-5145M

AMD Trinity (2012)

AMD A10-4655M
AMD A10-4600M
AMD A8-4555M
AMD A8-4500M
AMD A6-4455M
AMD A6-4400M
AMD A4-4355M
AMD A4-4300M

AMD Llano (2011)

AMD A8-3550MX
AMD A8-3530MX
AMD A8-3520M
AMD A8-3510MX
AMD A8-3500M
AMD A6-3430MX
AMD A6-3420M
AMD A6-3410MX
AMD A6-3400M
AMD A4-3330MX
AMD A4-3320M
AMD A4-3310MX
AMD A4-3305M
AMD A4-3300M
AMD E2-3000M

AMD Champlain (2010)

AMD Geneva (2010)

AMD Turion II Neo N54L
AMD Turion II K685
AMD Turion II K665
AMD Turion II K645
AMD Turion II K625

AMD Caspian (2009)

AMD Turion II Ultra M660
AMD Turion II Ultra M640
AMD Turion II Ultra M620
AMD Turion II Ultra M600
AMD Turion II M560
AMD Turion II M540
AMD Turion II M520
AMD Turion II M500
AMD Athlon II M360
AMD Athlon II M340
AMD Athlon II M320
AMD Athlon II M300
AMD Sempron M140
AMD Sempron M120
AMD Sempron M100

AMD Conesus (2009)

AMD Athlon Neo X2 L510
AMD Athlon Neo X2 L335
AMD Athlon Neo X2 L325

AMD Sherman (2009)

AMD Athlon Neo TF-20

AMD Huron (2009)

AMD Athlon Neo MV-40
AMD Sempron 210U
AMD Sempron 200U

AMD Sable (2008)

AMD Sempron SI-42
AMD Sempron SI-40

AMD Sherman (2007)

AMD Mobile Sempron 4000+
AMD Mobile Sempron 3800+
AMD Mobile Sempron 3700+
AMD Mobile Sempron 3600+
AMD Sempron 2100+ fanless

AMD Keene (2006)

AMD Mobile Sempron 3600+
AMD Mobile Sempron 3500+
AMD Mobile Sempron 3400+
AMD Mobile Sempron 3200+

AMD Newark (2005)

AMD Mobile Athlon 64 4000+
AMD Mobile Athlon 64 3700+
AMD Mobile Athlon 64 3400+
AMD Mobile Athlon 64 3200+
AMD Mobile Athlon 64 3000+

AMD Albany (2005)

AMD Mobile Sempron 3600+
AMD Mobile Sempron 3400+
AMD Mobile Sempron 3300+
AMD Mobile Sempron 3100+
AMD Mobile Sempron 3000+

AMD Roma (2005)

AMD Mobile Sempron 3400+
AMD Mobile Sempron 3300+
AMD Mobile Sempron 3100+
AMD Mobile Sempron 3000+
AMD Mobile Sempron 2800+

AMD Oakville (2004)

AMD Mobile Athlon 64 3000+
AMD Mobile Athlon 64 2800+
AMD Mobile Athlon 64 2700+

AMD Georgetown (2004)

AMD Mobile Sempron 3300+
AMD Mobile Sempron 3100+
AMD Mobile Sempron 3000+
AMD Mobile Sempron 2800+
AMD Mobile Sempron 2600+

AMD Sonora (2004)

AMD Mobile Sempron 3100+
AMD Mobile Sempron 3000+
AMD Mobile Sempron 2800+
AMD Mobile Sempron 2600+

AMD Dublin (2004)

AMD Mobile Sempron 3000+
AMD Mobile Sempron 2800+
AMD Mobile Sempron 2600+

AMD Odessa (2004)

AMD Mobile Athlon 64 3000+
AMD Mobile Athlon 64 2800+
AMD Mobile Athlon 64 2700+

AMD Clawhammer (2004)

AMD Mobile Athlon 64 3700+
AMD Mobile Athlon 64 3400+
AMD Mobile Athlon 64 3200+
AMD Mobile Athlon 64 3000+
AMD Mobile Athlon 64 2800+
AMD Mobile Athlon 64 2700+

Next Page > Apple, ARM & Intel CPUs Vulnerable To Meltdown & Spectre

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The Apple CPUs Vulnerable To Meltdown / Spectre

Apple makes custom processors based on the ARM microarchitecture. They have not released specific information on which of their processors are affected by which exploit, but this is what we know so far.

Affected Variants : Apple only issued a general notice that their processors are affected by both Meltdown and Spectre, not the specific variants.

Apple A4
Apple A5
Apple A5X
Apple A6
Apple A6X
Apple A7
Apple A8
Apple A8X
Apple A9
Apple A9X
Apple A10 Fusion
Apple A10X Fusion
Apple A11 Bionic

Vulnerable iOS or tvOS Devices : Apple was vague about the iOS devices that were affected, but based on the affected CPU cores, here are the iOS devices that are vulnerable to Meltdown and Spectre :

Apple iPad, iPad 2, iPad 3, iPad 4
Apple iPad Air, iPad Air 2
Apple iPad Mini, iPad Mini 2, iPad Mini 3
Apple iPad Pro (9.7″, 10.5″ and 12.9″)
Apple iPhone 4, iPhone 4S, iPhone 5, iPhone 5C, iPhone 5S, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X
Apple iPod Touch 4th Generation, iPod Touch 5th Generation, iPod Touch 6th Generation
Apple TV 2nd Generation, 3rd Generation, 4th Generation and 5th Generation

The ARM CPUs Vulnerable To Meltdown / Spectre

ARM CPUs Vulnerable To All Three Variants

Affected Variants : Variants 1 and 2, and either Variant 3 or Variant 3a, of the speculative execution CPU bug. They are vulnerable to Meltdown and both variants of Spectre.

ARM Cortex-A75
ARM Cortex-A72
ARM Cortex-A57
ARM Cortex-A15

Mobile SoCs Using These ARM CPUs (Not Exhaustive)

HiSilicon Kirin 955
HiSilicon Kirin 950
HiSilicon Kirin 928
HiSilicon Kirin 925
HiSilicon Kirin 920
MediaTek Helio X27 (MT6797X)
MediaTek Helio X25 (MT6797T)
MediaTek Helio X23 (MT6707D)
MediaTek Helio X20 (MT6797)
MediaTek MT8173
MediaTek MT8135 / MT8135V
MediaTek MT6795
NVIDIA Tegra X2
NVIDIA Tegra X1
NVIDIA Tegra K1
NVIDIA Tegra 4
Qualcomm Snapdragon 845
Qualcomm Snapdragon 810 / 808
Qualcomm Snapdragon 670
Qualcomm Snapdragon 653 / 652 / 650
Qualcomm Snapdragon 640
Samsung Exynos 7420
Samsung Exynos 5800
Samsung Exynos 5433
Samsung Exynos 5422 / 5420
Samsung Exynos 5410
Samsung Exynos 5260
Samsung Exynos 5250
Samsung Exynos 5 Dual (Exynos 5250)

AMD Server SoCs Using These ARM CPUs

AMD Opteron A1170
AMD Opteron A1150
AMD Opteron A1120

NVIDIA Devices Using These ARM CPUs (Not Exhaustive)

NVIDIA SHIELD TV (ARM Cortex-A57)
NVIDIA SHIELD Tablet (ARM Cortex-A15)
NVIDIA Jetson TX2 (ARM Cortex-A57)
NVIDIA Jetson TX1 (ARM Cortex-A57)
NVIDIA Jetson TK1 (ARM Cortex-A15)
NVIDIA Jetson Tegra K1 (ARM Cortex-A15)

Digital TV / Media Player SoCs Using These ARM CPUs (Not Exhaustive)

Rockchip RK3399

Industrial SoCs Using These ARM CPUs (Not Exhaustive)

Texas Instruments Sitara AM5728
Texas Instruments Sitara AM5726
Texas Instruments Sitara AM5718
Texas Instruments Sitara AM5716
Texas Instruments Sitara AM5708
Texas Instruments Sitara AM5706
Texas Instruments Sitara AM5K2E04
Texas Instruments Sitara AM5K2E02

ARM CPUs Vulnerable To Only Spectre 1 & 2

Affected Variant : Variants 1 and 2 of the speculative execution CPU bug. They are not vulnerable to Meltdown.

ARM Cortex-A73
ARM Cortex-A17
ARM Cortex-A12
ARM Cortex-A9
ARM Cortex-A8
ARM Cortex-R8
ARM Cortex-R7

Mobile SoCs Using These ARM CPUs (Not Exhaustive)

HiSilicon Kirin 970
HiSilicon Kirin 960
HiSilicon Kirin 910 / 910T
HiSilicon K3V2 / K3V2E
MediaTek Helio P70
MediaTek Helio P40
MediaTek Helio X30 (MT6799)
MediaTek MT8377
MediaTek MT8317 / MT8317T
MediaTek MT6595 / MT6595M / MT6595 Turbo
MediaTek MT6577 / MT6577T
MediaTek MT6575 / MT6575M
MediaTek MT6517 / MT6517T
MediaTek MT6515
NVIDIA Tegra 4i
NVIDIA Tegra 3
NVIDIA Tegra 2
Qualcomm Snapdragon 835
Qualcomm Snapdragon 653
Samsung Exynos 9610
Samsung Exynos 7885
Samsung Exynos 7872
Samsung Exynos 4415 / 4412
Samsung Exynos 4212 / 4210
Samsung Exynos 3110

Tablet SoCs Using These ARM CPUs (Not Exhaustive)

Amlogic AML8726-M / M3
Amlogic AML8726-M6 / Amlogic MX
Amlogic M802
Amlogic M801

Digital TV / Media Player SoCs Using These ARM CPUs (Not Exhaustive)

Amlogic S812
Amlogic S802
MediaTek MT5595
MediaTek MT5580
MediaTek MT5505
MediaTek MT5398
Panasonic UniPhier MN2WS0220
Rockchip RK3288
Rockchip RK3188 / RK3188T / RK3168
Rockchip RK3066
Rockchip RK2928 / RK2926 / RK2918 / RK2906
Rockchip RK2818

Industrial SoCs Using These ARM CPUs (Not Exhaustive)

Texas Instruments Sitara AMIC120
Texas Instruments Sitara AMIC110
Texas Instruments Sitara AM4388
Texas Instruments Sitara AM4384
Texas Instruments Sitara AM4382
Texas Instruments Sitara AM4379
Texas Instruments Sitara AM4378
Texas Instruments Sitara AM4377
Texas Instruments Sitara AM4376
Texas Instruments Sitara AM4372
Texas Instruments Sitara AM3894
Texas Instruments Sitara AM3892
Texas Instruments Sitara AM3874
Texas Instruments Sitara AM3871
Texas Instruments Sitara AM3715
Texas Instruments Sitara AM3703
Texas Instruments Sitara AM3517
Texas Instruments Sitara AM3505
Texas Instruments Sitara AM3359
Texas Instruments Sitara AM3358 / AM3358-EP
Texas Instruments Sitara AM3357
Texas Instruments Sitara AM3356
Texas Instruments Sitara AM3354
Texas Instruments Sitara AM3352
Texas Instruments Sitara AM3351
Texas Instruments Sitara AM1810
Texas Instruments Sitara AM1808
Texas Instruments Sitara AM1806
Texas Instruments Sitara AM1802
Texas Instruments Sitara AM1707
Texas Instruments Sitara AM1705
Texas Instruments Sitara OMAP3515
Texas Instruments Sitara OMAP3503 / OMAP3503-HIREL

Embedded Computers Using These ARM CPUs (Not Exhaustive)

VIA VAB-1000
VIA VAB-820 / VAB-800
VIA VAB-630 / VAB-600
VIA ALTA DS
VIA QSM-8Q60
VIA SOM-6X50
VIA VTS-8589

IBM POWER CPUs Vulnerable To Meltdown + Spectre

Affected Variants : These IBM POWER CPUs are affected by all three variants of the speculative execution CPU bug. They are vulnerable to the Meltdown and both Spectre exploits.

IBM POWER4
IBM POWER4+
IBM POWER5
IBM POWER5+
IBM POWER6
IBM POWER6+
IBM POWER7
IBM POWER7+
IBM POWER8
– including IBM Murano, IBM Turismo, PowerCore CP1
IBM POWER8 with NVLink / POWER8+
IBM POWER9
– IBM Nimbus, IBM Cumulus

IBM z/Architecture CPUs Vulnerable To Meltdown + Spectre

Affected Variants : These IBM z/Architecture CPUs are affected by all three variants of the speculative execution CPU bug. They are vulnerable to the Meltdown and both Spectre exploits.

IBM z14
IBM z13
IBM zEC12
IBM z196
IBM z10

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Intel UMPC / Smartphone SoCs Vulnerable To Meltdown + Spectre

Affected Variants : These Intel SoCs are affected by all three variants of the speculative execution CPU bug. They are vulnerable to the Meltdown and both Spectre exploits.

Intel Apollo Lake (2016)

Intel Atom x7-E3950
Intel Atom x7-E3940
Intel Atom x7-E3930

Intel Braswell (2016)

Intel Atom x5-E8000

Intel Cherry Trail-T (2015)

Intel Atom X7-Z8750
Intel Atom X7-Z8700
Intel Atom X7-Z8550
Intel Atom X7-Z8500
Intel Atom X7-Z8350
Intel Atom X7-Z8330
Intel Atom X7-Z8300

Intel SoFIA (2015)

Intel Atom x3-C3445
Intel Atom x3-C3405
Intel Atom x3-C3400
Intel Atom x3-C3295RK
Intel Atom x3-C3265RK
Intel Atom x3-C3235RK
Intel Atom x3-C3230RK
Intel Atom x3-C3205RK
Intel Atom x3-C3200RK
Intel Atom x3-C3130

Intel Moorefield (2014)

Intel Atom Z3590
Intel Atom Z3580
Intel Atom Z3570
Intel Atom Z3560
Intel Atom Z3530

Intel Merrifield (2014)

Intel Atom Z3480
Intel Atom Z3460

Intel Bay Trail-T (2013)

Intel Atom Z3795
Intel Atom Z3785
Intel Atom Z3775
Intel Atom Z3775D
Intel Atom Z3770
Intel Atom Z3770D
Intel Atom Z3745
Intel Atom Z3745D
Intel Atom Z3740
Intel Atom Z3740D
Intel Atom Z3736F
Intel Atom Z3736G
Intel Atom Z3735D
Intel Atom Z3735E
Intel Atom Z3735F
Intel Atom Z3735G
Intel Atom Z3680
Intel Atom Z3680D

Intel Bay Trail-I (2013)

Intel Atom E3845
Intel Atom E3827
Intel Atom E3826
Intel Atom E3825
Intel Atom E3815
Intel Atom E3805

Next Page > Intel Server / Workstation CPUs Vulnerable To Meltdown + Spectre

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Intel Server / Workstation CPUs Vulnerable To Meltdown + Spectre

Affected Variants : These Intel CPUs are affected by all three variants of the speculative execution CPU bug. They are vulnerable to the Meltdown and both Spectre exploits.

Intel Knights Mill (2017)

Intel Xeon Phi 7295
Intel Xeon Phi 7285
Intel Xeon Phi 7235

Intel Skylake-W (2017)

Intel Xeon W-2195
Intel Xeon W-2175
Intel Xeon W-2155
Intel Xeon W-2150B
Intel Xeon W-2145
Intel Xeon W-2140B
Intel Xeon W-2135
Intel Xeon W-2133
Intel Xeon W-2125
Intel Xeon W-2123
Intel Xeon W-2104
Intel Xeon W-2102

Intel Skylake-SP (2017)

Intel Denverton (2017)

Intel Atom C3958
Intel Atom C3955
Intel Atom C3950
Intel Atom C3855
Intel Atom C3850
Intel Atom C3830
Intel Atom C3808
Intel Atom C3758
Intel Atom C3750
Intel Atom C3708
Intel Atom C3558
Intel Atom C3538
Intel Atom C3508
Intel Atom C3338
Intel Atom C3308

Intel Kaby Lake-DT (2017)

Intel Xeon E3-1285 v6
Intel Xeon E3-1280 v6
Intel Xeon E3-1275 v6
Intel Xeon E3-1270 v6
Intel Xeon E3-1245 v6
Intel Xeon E3-1240 v6
Intel Xeon E3-1230 v6
Intel Xeon E3-1225 v6
Intel Xeon E3-1220 v6

Intel Kaby Lake-H (2017)

Intel Xeon E3-1535M
Intel Xeon E3-1505M
Intel Xeon E3-1505L
Intel Xeon E3-1501L
Intel Xeon E3-1501M

Intel Knights Landing (2016)

Intel Xeon Phi 7290F
Intel Xeon Phi 7290
Intel Xeon Phi 7250F
Intel Xeon Phi 7250
Intel Xeon Phi 7230F
Intel Xeon Phi 7230
Intel Xeon Phi 7210F
Intel Xeon Phi 7210

Intel Skylake-H (2016)

Intel Xeon E3-1585 v5
Intel Xeon E3-1585L v5
Intel Xeon E3-1578L v5
Intel Xeon E3-1575M v5
Intel Xeon E3-1565L v5
Intel Xeon E3-1558L v5
Intel Xeon E3-1545M v5
Intel Xeon E3-1535M v5
Intel Xeon E3-1515M v5
Intel Xeon E3-1505M v5
Intel Xeon E3-1505L v5

Intel Broadwell-EX (2016)

Intel E7-8894 v4
Intel E7-8893 v4
Intel E7-8891 v4
Intel E7-8890 v4
Intel E7-8880 v4
Intel E7-8870 v4
Intel E7-8867 v4
Intel E7-8860 v4
Intel E7-8855 v4
Intel E7-4850 v4
Intel E7-4830 v4
Intel E7-4820 v4
Intel E7-4809 v4

Intel Broadwell-EP (2016)

Intel Skylake-DT (2015)

Intel Xeon E5-1280 v5
Intel Xeon E5-1275 v5
Intel Xeon E5-1270 v5
Intel Xeon E5-1268L v5
Intel Xeon E5-1260L v5
Intel Xeon E5-1245 v5
Intel Xeon E5-1240 v5
Intel Xeon E5-1240L v5
Intel Xeon E5-1235L v5
Intel Xeon E5-1230 v5
Intel Xeon E5-1225 v5
Intel Xeon E5-1220 v5

Intel Broadwell-H (2015)

Intel Xeon E3-1285 v4
Intel Xeon E3-1285L v4
Intel Xeon E3-1284L v4
Intel Xeon E3-1278L v4
Intel Xeon E3-1270L v4
Intel Xeon E3-1265L v4
Intel Xeon E3-1258L v4

Intel Broadwell-DE (2015)

Intel Xeon D-1587
Intel Xeon D-1581
Intel Xeon D-1577
Intel Xeon D-1571
Intel Xeon D-1567
Intel Xeon D-1559
Intel Xeon D-1557
Intel Xeon D-1553N
Intel Xeon D-1548
Intel Xeon D-1543N
Intel Xeon D-1541
Intel Xeon D-1540
Intel Xeon D-1539
Intel Xeon D-1537
Intel Xeon D-1533N
Intel Xeon D-1531
Intel Xeon D-1529
Intel Xeon D-1528
Intel Xeon D-1527
Intel Xeon D-1523N
Intel Xeon D-1521
Intel Xeon D-1520
Intel Xeon D-1518
Intel Xeon D-1513N
Intel Pentium D1519
Intel Pentium D1517
Intel Pentium D1509
Intel Pentium D1508
Intel Pentium D1507

Intel Haswell-EX (2015)

Intel Xeon E7-8895 v3
Intel Xeon E7-8893 v3
Intel Xeon E7-8891 v3
Intel Xeon E7-8890 v3
Intel Xeon E7-8880 v3
Intel Xeon E7-8880L v3
Intel Xeon E7-8870 v3
Intel Xeon E7-8867 v3
Intel Xeon E7-8860 v3
Intel Xeon E7-4850 v3
Intel Xeon E7-4830 v3
Intel Xeon E7-4820 v3
Intel Xeon E7-4809 v3

Intel Haswell-EN (2015)

Intel Xeon E5-2438L v3
Intel Xeon E5-2428L v3
Intel Xeon E5-2418L v3
Intel Xeon E5-2408L v3
Intel Xeon E5-1428L v3

Intel Haswell-EP (2014)

Intel Ivy Bridge-EN (2014)

Intel Xeon E5-2470 v2
Intel Xeon E5-2450 v2
Intel Xeon E5-2450L v2
Intel Xeon E5-2448L v2
Intel Xeon E5-2440 v2
Intel Xeon E5-2430 v2
Intel Xeon E5-2430L v2
Intel Xeon E5-2428L v2
Intel Xeon E5-2420 v2
Intel Xeon E5-2418L v2
Intel Xeon E5-2407 v2
Intel Xeon E5-2403 v2
Intel Xeon E5-1428L v2
Intel Xeon E5-1410 v2

Intel Ivy Bridge-EX (2014)

Intel Xeon E7-8895 v2
Intel Xeon E7-8893 v2
Intel Xeon E7-8891 v2
Intel Xeon E7-8890 v2
Intel Xeon E7-8880 v2
Intel Xeon E7-8880L v2
Intel Xeon E7-8870 v2
Intel Xeon E7-8857 v2
Intel Xeon E7-8850 v2
Intel Xeon E7-4890 v2
Intel Xeon E7-4880 v2
Intel Xeon E7-4870 v2
Intel Xeon E7-4860 v2
Intel Xeon E7-4850 v2
Intel Xeon E7-4830 v2
Intel Xeon E7-4820 v2
Intel Xeon E7-4809 v2
Intel Xeon E7-2890 v2
Intel Xeon E7-2880 v2
Intel Xeon E7-2870 v2
Intel Xeon E7-2850 v2

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Intel Rangeley (2013)

Intel Atom C2758
Intel Atom C2738
Intel Atom C2718
Intel Atom C2558
Intel Atom C2538
Intel Atom C2518
Intel Atom C2516
Intel Atom C2508
Intel Atom C2358
Intel Atom C2338
Intel Atom C2316
Intel Atom C2308

Intel Avoton (2013)

Intel Atom C2750
Intel Atom C2730
Intel Atom C2550
Intel Atom C2530
Intel Atom C2350

Intel Haswell-WS (2013)

Intel Xeon E3-1286 v3
Intel Xeon E3-1286L v3
Intel Xeon E3-1285 v3
Intel Xeon E3-1285L v3
Intel Xeon E3-1284L v3
Intel Xeon E3-1281 v3
Intel Xeon E3-1280 v3
Intel Xeon E3-1276 v3
Intel Xeon E3-1275 v3
Intel Xeon E3-1275L v3
Intel Xeon E3-1271 v3
Intel Xeon E3-1270 v3
Intel Xeon E3-1268L v3
Intel Xeon E3-1265L v3
Intel Xeon E3-1246 v3
Intel Xeon E3-1245 v3
Intel Xeon E3-1241 v3
Intel Xeon E3-1240 v3
Intel Xeon E3-1240L v3
Intel Xeon E3-1230L v3
Intel Xeon E3-1231 v3
Intel Xeon E3-1230 v3
Intel Xeon E3-1226 v3
Intel Xeon E3-1225 v3
Intel Xeon E3-1220 v3
Intel Xeon E3-1220L v3

Intel Ivy Bridge-EP (2013)

Intel Gladden – Ivy Bridge (2013)

Intel Xeon E3-1135C v2
Intel Xeon E3-1125C v2
Intel Xeon E3-1105C v2

Intel Ivy Bridge (2012)

Intel Xeon E-1290 v2
Intel Xeon E-1280 v2
Intel Xeon E-1275 v2
Intel Xeon E-1270 v2
Intel Xeon E-1265L v2
Intel Xeon E-1245 v2
Intel Xeon E-1240 v2
Intel Xeon E-1230 v2
Intel Xeon E-1225 v2
Intel Xeon E-1220 v2
Intel Xeon E-1220L v2
Intel Pentium 1405 v2
Intel Pentium 1403 v2

Intel Sandy Bridge-EP (2012)

Intel Sandy Bridge-EN (2012)

Intel Xeon E5-2470
Intel Xeon E5-2450
Intel Xeon E5-2450L
Intel Xeon E5-2449L
Intel Xeon E5-2448L
Intel Xeon E5-2440
Intel Xeon E5-2430
Intel Xeon E5-2430L
Intel Xeon E5-2428L
Intel Xeon E5-2420
Intel Xeon E5-2418L
Intel Xeon E5-2407
Intel Xeon E5-2403
Intel Xeon E5-1428L
Intel Xeon E5-1410

Intel Gladden – Sandy Bridge (2012)

Intel Xeon E3-1125C
Intel Xeon E3-1105C

Intel Sandy Bridge (2011)

Intel Xeon E3-1290
Intel Xeon E3-1280
Intel Xeon E3-1275
Intel Xeon E3-1270
Intel Xeon E3-1260L
Intel Xeon E3-1245
Intel Xeon E3-1240
Intel Xeon E3-1235
Intel Xeon E3-1230
Intel Xeon E3-1225
Intel Xeon E3-1220
Intel Xeon E3-1220L
Intel Pentium 1407
Intel Pentium 1405
Intel Pentium 1403
Intel Pentium 350

Intel Westmere-EX (2011)

Intel Xeon E7-8870
Intel Xeon E7-8867L
Intel Xeon E7-8860
Intel Xeon E7-8850
Intel Xeon E7-8837
Intel Xeon E7-8830
Intel Xeon E7-4870
Intel Xeon E7-4860
Intel Xeon E7-4850
Intel Xeon E7-4830
Intel Xeon E7-4820
Intel Xeon E7-4807
Intel Xeon E7-2870
Intel Xeon E7-2860
Intel Xeon E7-2850
Intel Xeon E7-2830
Intel Xeon E7-2820
Intel Xeon E7-2803

Intel Gulftown (2010)

Intel Xeon W3690
Intel Xeon W3580
Intel Xeon W3570

Intel Clarksdale (2010)

Intel Xeon L3406
Intel Xeon L3403

Intel Jasper Forest (2010)

Intel Xeon EC5549
Intel Xeon EC5539
Intel Xeon EC5509
Intel Xeon LC5528
Intel Xeon LC5518
Intel Xeon EC3539
Intel Xeon LC3528
Intel Xeon LC3518

Intel Beckton (2010)

Intel Xeon X7560
Intel Xeon L7555
Intel Xeon X7550
Intel Xeon L7545
Intel Xeon X7542
Intel Xeon E7540
Intel Xeon E7530
Intel Xeon E7520
Intel Xeon X6550
Intel Xeon E6540
Intel Xeon E6510

Intel Westmere-EP (2010)

Intel Xeon X5698
Intel Xeon X5690
Intel Xeon X5687
Intel Xeon X5680
Intel Xeon X5679
Intel Xeon X5677
Intel Xeon X5675
Intel Xeon X5672
Intel Xeon X5670
Intel Xeon X5667
Intel Xeon X5660
Intel Xeon X5650
Intel Xeon E5649
Intel Xeon X5647
Intel Xeon E5645
Intel Xeon L5645
Intel Xeon E5640
Intel Xeon L5640
Intel Xeon L5639
Intel Xeon E5630
Intel Xeon L5638
Intel Xeon E5620
Intel Xeon E5607
Intel Xeon E5606
Intel Xeon E5603

Intel Gainestown (2009)

Intel Xeon W5590
Intel Xeon W5580
Intel Xeon X5570
Intel Xeon X5560
Intel Xeon X5550
Intel Xeon E5540
Intel Xeon E5530
Intel Xeon L5530
Intel Xeon E5520
Intel Xeon L5520
Intel Xeon L5518
Intel Xeon L5508
Intel Xeon E5507
Intel Xeon E5506
Intel Xeon L5506
Intel Xeon E5504
Intel Xeon E5503
Intel Xeon E5502

Intel Lynnfield (2009)

Intel Xeon X3480
Intel Xeon X3470
Intel Xeon X3460
Intel Xeon X3450
Intel Xeon X3440
Intel Xeon X3430
Intel Xeon L3426

Intel Bloomfield (2009)

Intel Xeon W3580
Intel Xeon W3570
Intel Xeon W3565
Intel Xeon W3550
Intel Xeon W3540
Intel Xeon W3530
Intel Xeon W3520
Intel Xeon W3505
Intel Xeon W3503

Intel Yorkfield (2008-2009)

Intel Xeon X3380
Intel Xeon L3380
Intel Xeon X3370
Intel Xeon X3360
Intel Xeon X3350

Intel Wolfdale (2008-2009)

Intel Xeon E3120
Intel Xeon E3110
Intel Xeon L3110

Intel Dunnington (2008)

Intel Xeon X7460
Intel Xeon E7458
Intel Xeon L7455
Intel Xeon E7450
Intel Xeon L7445
Intel Xeon E7440
Intel Xeon E7430
Intel Xeon E7420

Intel Yorkfield-6M (2008)

Intel Xeon X3330
Intel Xeon X3320

Intel Yorkfield-CL (2008)

Intel Xeon X3363
Intel Xeon X3353
Intel Xeon X3323
Intel Xeon X3113
Intel Xeon L3014

Intel Harpertown (2007-2008)

Intel Xeon X5492
Intel Xeon X5482
Intel Xeon X5472
Intel Xeon E5472
Intel Xeon E5462
Intel Xeon X5470
Intel Xeon X5460
Intel Xeon X5450
Intel Xeon E5450
Intel Xeon E5440
Intel Xeon E5430
Intel Xeon L5430
Intel Xeon E5420
Intel Xeon L5420
Intel Xeon E5410
Intel Xeon L5410
Intel Xeon L5408
Intel Xeon E5405

Intel Wolfdale-DP (2007-2008)

Intel Xeon X5272
Intel Xeon X5270
Intel Xeon X5260
Intel Xeon L5248
Intel Xeon X5240
Intel Xeon L5240
Intel Xeon L5238
Intel Xeon X5220
Intel Xeon L5215
Intel Xeon X5205

Intel Tigerton (2007)

Intel Xeon X7350
Intel Xeon L7345
Intel Xeon E7340
Intel Xeon E7330
Intel Xeon E7320
Intel Xeon E7310
Intel Xeon E7220
Intel Xeon E7210

Intel Kentsfield (2007)

Intel Xeon X3230
Intel Xeon X3220
Intel Xeon X3210

Intel Allendale (2007)

Intel Xeon 3050
Intel Xeon 3040

Intel Clovertown (2006-2007)

Intel Xeon X5365
Intel Xeon X5355
Intel Xeon X5350
Intel Xeon E5350
Intel Xeon E5345
Intel Xeon E5340
Intel Xeon E5335
Intel Xeon L5335
Intel Xeon E5330
Intel Xeon E5320
Intel Xeon L5320
Intel Xeon L5318
Intel Xeon E5310
Intel Xeon L5310

Intel Conroe (2006-2007)

Intel Xeon 3085
Intel Xeon 3075
Intel Xeon 3070
Intel Xeon 3065
Intel Xeon 3060
Intel Xeon 3050
Intel Xeon 3040

Intel Woodcrest (2006)

Intel Xeon 5160
Intel Xeon 5150
Intel Xeon LV 5148
Intel Xeon 5140
Intel Xeon LV 5138
Intel Xeon LV 5133
Intel Xeon 5130
Intel Xeon LV 5128
Intel Xeon 5120
Intel Xeon LV 5113
Intel Xeon 5110

Next Page > Intel Desktop CPUs Vulnerable To Meltdown + Spectre

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Intel Desktop CPUs Vulnerable To Meltdown + Spectre

Affected Variants : These Intel CPUs are affected by all three variants of the speculative execution CPU bug. They are vulnerable to the Meltdown and both Spectre exploits.

Intel Coffee Lake-S (2017)

Intel Core i7-8700K
Intel Core i7-8700
Intel Core i5-8600K
Intel Core i5-8400
Intel Core i3-8350K
Intel Core i3-8100

Intel Gemini Lake (2017)

Intel Pentium Silver J5005
Intel Celeron J4105
Intel Celeron J4005

Intel Denverton (2017)

Intel Celeron C3958
Intel Celeron C3955
Intel Celeron C3950
Intel Celeron C3858
Intel Celeron C3850
Intel Celeron C3830
Intel Celeron C3808
Intel Celeron C3758
Intel Celeron C3750
Intel Celeron C3708
Intel Celeron C3558
Intel Celeron C3538
Intel Celeron C3508
Intel Celeron C3338
Intel Celeron C3308

Intel Kaby Lake-X (2017)

Intel Core i7-7740X
Intel Core i5-7640X

Intel Kaby Lake-S (2017)

Intel Core i7-7700K
Intel Core i7-7700
Intel Core i7-7700T
Intel Core i5-7600K
Intel Core i5-7600
Intel Core i5-7600T
Intel Core i5-7500
Intel Core i5-7500T
Intel Core i5-7400
Intel Core i5-7400T
Intel Core i3-7350K
Intel Core i3-7320
Intel Core i3-7300
Intel Core i3-7300T
Intel Core i3-7101T
Intel Core i3-7101TE
Intel Core i3-7100
Intel Core i3-7100T
Intel Pentium G4620
Intel Pentium G4600
Intel Pentium G4600T
Intel Pentium G4560
Intel Pentium G4560T
Intel Celeron G3950
Intel Celeron G3930
Intel Celeron G3930T
Intel Celeron G3930E
Intel Celeron G3930TE

Intel Skylake-X (2017)

Intel Core i9-7980XE
Intel Core i9-7960X
Intel Core i9-7940X
Intel Core i9-7920X
Intel Core i9-7900X
Intel Core i7-7820X
Intel Core i7-7800X

Intel Apollo Lake (2016)

Intel Pentium J4205
Intel Pentium J3455
Intel Pentium J3355
Intel Celeron J3455
Intel Celeron J3355
Intel Atom x5-E3950
Intel Atom x5-E3940
Intel Atom x5-E3930

Intel Skylake-H (2016)

Intel Core i7-6785R
Intel Core i5-6685R
Intel Core i5-6585R

Intel Braswell (2016)

Intel Pentium J3710
Intel Celeron J3160
Intel Celeron J3060
Intel Atom x5-E8000

Intel Broadwell-E (2016)

Intel Core i7-6950X
Intel Core i7-6900K
Intel Core i7-6850X
Intel Core i7-6800X

Intel Skylake-S (2015)

Intel Broadwell-H (2015)

Intel Core i7-5775C
Intel Core i7-5775R
Intel Core i5-5675R
Intel Core i5-5675C
Intel Core i5-5575R

Intel Haswell-E (2014)

Intel Core i7-5960X
Intel Core i7-5930K
Intel Core i7-5820K

Intel Haswell-H (2013)

Intel Core i7-4770R
Intel Core i5-4670R
Intel Core i5-4570R

Intel Haswell-DT (2013)

[adrotate group=”1″]

Intel Bay Trail-D (2013)

Intel Celeron J1900
Intel Celeron J1850
Intel Celeron J1800
Intel Celeron J1750

Intel Bay Trail-I (2013)

Intel Atom E3845
Intel Atom E3827
Intel Atom E3826
Intel Atom E3825
Intel Atom E3815
Intel Atom E3805

Intel Ivy Bridge-E (2012)

Intel Core i7-4960X
Intel Core i7-4960K
Intel Core i7-4820K

Intel Ivy Bridge (2012)

Intel Sandy Bridge-E (2011)

Intel Core i7-3970X
Intel Core i7-3960K
Intel Core i7-3930K
Intel Core i7-3820

Intel Sandy Bridge (2011)

Intel Gulftown (2010)

Intel Core i7-990X
Intel Core i7-980X
Intel Core i7-980
Intel Core i7-970

Intel Clarksdale (2010)

Intel Core i5-680
Intel Core i5-670
Intel Core i5-661
Intel Core i5-660
Intel Core i5-655K
Intel Core i5-650
Intel Core i3-560
Intel Core i3-550
Intel Core i3-540
Intel Core i3-530
Intel Pentium G6960
Intel Pentium G6951
Intel Pentium G6950
Intel Celeron G1101

Intel Lynnfield (2009)

Intel Core i7-880
Intel Core i7-875K
Intel Core i7-870
Intel Core i7-870S
Intel Core i7-860
Intel Core i7-860S
Intel Core i5-760
Intel Core i5-750
Intel Core i5-750S

Intel Bloomfield (2008)

Intel Core i7-975 Extreme Edition
Intel Core i7-965 Extreme Edition
Intel Core i7-960
Intel Core i7-950
Intel Core i7-940
Intel Core i7-930
Intel Core i7-920

Intel Yorkfield-6M (2008-2010)

Intel Core 2 Quad Q9705
Intel Core 2 Quad Q9700
Intel Core 2 Quad Q9505S
Intel Core 2 Quad Q9505
Intel Core 2 Quad Q9500
Intel Core 2 Quad Q9400S
Intel Core 2 Quad Q9400
Intel Core 2 Quad Q9300
Intel Core 2 Quad Q8400S
Intel Core 2 Quad Q8400
Intel Core 2 Quad Q8300
Intel Core 2 Quad Q8200S
Intel Core 2 Quad Q8200

Intel Yorkfield (2008-2009)

Intel Core 2 Quad Q9650
Intel Core 2 Quad Q9550S
Intel Core 2 Quad Q9550
Intel Core 2 Quad Q9450S
Intel Core 2 Quad Q9450

Intel Wolfdale (2008-2009)

Intel Core 2 Duo E8700
Intel Core 2 Duo E8600
Intel Core 2 Duo E8500
Intel Core 2 Duo E8400
Intel Core 2 Duo E8300
Intel Core 2 Duo E8290
Intel Core 2 Duo E8200
Intel Core 2 Duo E8190

Intel Wolfdale-3M (2008-2010)

Intel Core 2 Duo E7600
Intel Core 2 Duo E7500
Intel Core 2 Duo E7400
Intel Core 2 Duo E7300
Intel Core 2 Duo E7200
Intel Pentium E6800
Intel Pentium E6700
Intel Pentium E6600
Intel Pentium E6500K
Intel Pentium E6500
Intel Pentium E6300
Intel Pentium E5800
Intel Pentium E5700
Intel Pentium E5500
Intel Pentium E5400
Intel Pentium E5300
Intel Pentium Dual-Core E5300
Intel Pentium E5200
Intel Pentium Dual-Core E5200
Intel Pentium Dual-Core E2210
Intel Celeron E3500
Intel Celeron E3400
Intel Celeron E3300
Intel Celeron E3200

Intel Allendale (2008-2009)

Intel Celeron E1600
Intel Celeron E1500
Intel Celeron E1400
Intel Celeron E1200

Intel Yorkfield-XE (2007-2008)

Intel Core 2 Extreme QX9775
Intel Core 2 Extreme QX9770
Intel Core 2 Extreme QX9650

Intel Conroe-L (2007-2008)

Intel Celeron 450
Intel Celeron 445
Intel Celeron 430
Intel Celeron 420
Intel Celeron 220

Intel Kentsfield (2007)

Intel Core 2 Quad Q6700
Intel Core 2 Quad Q6600
Intel Core 2 Quad Q6400

Intel Conroe-CL (2007)

Intel Core 2 Duo E6405
Intel Core 2 Duo E6305
Intel Celeron 445

Intel Conroe (2006-2008)

Intel Core 2 Duo E6850
Intel Core 2 Duo E6750
Intel Core 2 Duo E6700
Intel Core 2 Duo E6600
Intel Core 2 Duo E6550
Intel Core 2 Duo E6540
Intel Core 2 Duo E6420
Intel Core 2 Duo E6400
Intel Core 2 Duo E6320
Intel Core 2 Duo E6300
Intel Core 2 Duo E4700
Intel Core 2 Duo E4600
Intel Core 2 Duo E4500
Intel Core 2 Duo E4400
Intel Core 2 Duo E4300
Intel Pentium Dual-Core E2220
Intel Pentium Dual-Core E2200
Intel Pentium Dual-Core E2180
Intel Pentium Dual-Core E2160
Intel Pentium Dual-Core E2140

Intel Kentsfield-XE (2006-2007)

Intel Core 2 Extreme QX6850
Intel Core 2 Extreme QX6800
Intel Core 2 Extreme QX6700

Next Page > Intel Mobile CPUs Vulnerable To Meltdown + Spectre

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Intel Mobile CPUs Vulnerable To Meltdown + Spectre

Affected Variants : These Intel CPUs are affected by all three variants of the speculative execution CPU bug. They are vulnerable to the Meltdown and both Spectre exploits.

Intel Gemini Lake (2017)

Intel Pentium Silver N5000
Intel Celeron N4100
Intel Celeron N4000

Intel Apollo Lake (2016)

Intel Pentium N4200
Intel Celeron N3450
Intel Celeron N3350

Intel Kaby Lake Refresh (2017)

Intel Core i7-8650U
Intel Core i7-8550U
Intel Core i5-8350U
Intel Core i5-8250U

Intel Kaby Lake-Y (2017)

Intel Core i5-Y757
Intel Core i5-Y754
Intel Core m3-7Y32
Intel Core m3-7Y30
Intel Pentium 4415Y
Intel Pentium 4410Y
Intel Celeron 3965Y

Intel Kaby Lake-U (2017)

Intel Core i7-7660U
Intel Core i7-7600U
Intel Core i7-7567U
Intel Core i7-7560U
Intel Core i7-7500U
Intel Core i5-7360U
Intel Core i5-7300U
Intel Core i5-7287U
Intel Core i5-7367U
Intel Core i5-7260U
Intel Core i5-7200U
Intel Core i3-7167U
Intel Core i3-7130U
Intel Core i3-7100U
Intel Pentium 4415U
Intel Celeron 3965U
Intel Celeron 3865U

Intel Kaby Lake-H (2016)

Intel Core i7-7920HQ
Intel Core i7-7820HQ
Intel Core i7-7820HK
Intel Core i7-7820EQ
Intel Core i7-7700HQ
Intel Core i7-7Y75
Intel Core i5-7442HQ
Intel Core i5-7442EQ
Intel Core i5-7440HQ
Intel Core i5-7440EQ
Intel Core i3-7102E
Intel Core i3-7100H
Intel Core i3-7100E

Intel Skylake-H (2015)

Intel Core i7-6970HQ
Intel Core i7-6920HQ
Intel Core i7-6870HQ
Intel Core i7-6822EQ
Intel Core i7-6820HQ
Intel Core i7-6820HK
Intel Core i7-6820EQ
Intel Core i7-6770HQ
Intel Core i7-6700HQ
Intel Core i5-6442EQ
Intel Core i5-6440HQ
Intel Core i5-6440EQ
Intel Core i5-6350HQ
Intel Core i5-6300HQ
Intel Core i3-6102E
Intel Core i3-6100H
Intel Core i3-6100E

Intel Skylake-Y (2015)

Intel Core m3-6Y75
Intel Core m3-6Y57
Intel Core m3-6Y54
Intel Core m3-6Y30
Intel Pentium 4405Y

Intel Skylake-U (2015)

Intel Core i7-6660U
Intel Core i7-6650U
Intel Core i7-6600U
Intel Core i7-6567U
Intel Core i7-6560U
Intel Core i7-6500U
Intel Core i5-6360U
Intel Core i5-6300U
Intel Core i5-6287U
Intel Core i5-6267U
Intel Core i5-6260U
Intel Core i5-6200U
Intel Core i5-6198DU
Intel Core i3-6167U
Intel Core i3-6157U
Intel Core i3-6100U
Intel Core i3-6006U
Intel Celeron 3955U
Intel Celeron 3855U
Intel Pentium 4405U

Intel Broadwell-H (2015)

Intel Core i7-5950HQ
Intel Core i7-5850HQ
Intel Core i7-5850EQ
Intel Core i7-5750HQ
Intel Core i7-5700HQ
Intel Core i7-5700EQ
Intel Core i5-5350H

Intel Broadwell-U (2015)

Intel Core i7-5650U
Intel Core i7-5600U
Intel Core i7-5557U
Intel Core i7-5550U
Intel Core i7-5500U
Intel Core i5-5350U
Intel Core i5-5300U
Intel Core i5-5287U
Intel Core i5-5257U
Intel Core i5-5250U
Intel Core i5-5200U
Intel Core i3-5157U
Intel Core i3-5020U
Intel Core i3-5015U
Intel Core i3-5010U
Intel Core i3-5005U
Intel Pentium 3825U
Intel Pentium 3805U
Intel Celeron 3765U
Intel Celeron 3755U
Intel Celeron 3215U
Intel Celeron 3205U

Intel Braswell (2015)

Intel Pentium N3710
Intel Pentium N3700
Intel Celeron N3160
Intel Celeron N3150
Intel Celeron N3060
Intel Celeron N3050
Intel Celeron N3010
Intel Celeron N3000

Intel Broadwell-Y (2014)

Intel Core M-5Y71
Intel Core M-5Y70
Intel Core M-5Y51
Intel Core M-5Y31
Intel Core M-5Y10c
Intel Core M-5Y10a
Intel Core M-5Y10

Intel Haswell-H (2013)

Intel Haswell-ULX (2013)

Intel Core i7-4610Y
Intel Core i5-4302Y
Intel Core i5-4300Y
Intel Core i5-4220Y
Intel Core i5-4210Y
Intel Core i5-4202Y
Intel Core i3-4030Y
Intel Core i3-4020Y
Intel Core i3-4012Y
Intel Core i3-4010Y
Intel Pentium 3561Y
Intel Pentium 3560Y
Intel Celeron 2002E
Intel Celeron 2000E

Intel Haswell-ULX (2013)

Intel Celeron 2961Y

Intel Haswell-ULT (2013)

Intel Haswell-MB (2013)

Intel Core i7-4940MX
Intel Core i7-4930MX
Intel Core i7-4910MQ
Intel Core i7-4900MQ
Intel Core i7-4810MQ
Intel Core i7-4800MQ
Intel Core i7-4712MQ
Intel Core i7-4710MQ
Intel Core i7-4702MQ
Intel Core i7-4610M
Intel Core i7-4600M
Intel Core i5-4340M
Intel Core i5-4330M
Intel Core i5-4310M
Intel Core i5-4300M
Intel Core i5-4210M
Intel Core i5-4200M
Intel Core i3-4110M
Intel Core i3-4100M
Intel Core i3-4010M
Intel Core i3-4000M
Intel Pentium 3560M
Intel Pentium 3550M
Intel Celeron 2970M
Intel Celeron 2950M

Intel Bay Trail-M (2013)

Intel Pentium N3540
Intel Pentium N3530
Intel Pentium N3520
Intel Pentium N3510
Intel Celeron N2940
Intel Celeron N2930
Intel Celeron N2920
Intel Celeron N2910
Intel Celeron N2840
Intel Celeron N2830
Intel Celeron N2820
Intel Celeron N2815
Intel Celeron N2810
Intel Celeron N2808
Intel Celeron N2807
Intel Celeron N2806
Intel Celeron N2805

Intel Gladden – Ivy Bridge (2013)

Intel Core i3-3115C

Intel Ivy Bridge (2012)

Intel Gladden – Sandy Bridge (2012)

Intel Core i3-2115C
Intel Celeron 725C

Intel Sandy Bridge (2011)

[adrotate group=”1″]

Intel Arrandale (2010)

Intel Jasper Forest (2010)

Intel Celeron P1053

Intel Clarksfield (2009)

Intel Core i7-940XM
Intel Core i7-920XM
Intel Core i7-840QM
Intel Core i7-820QM
Intel Core i7-740QM
Intel Core i7-720QM

Intel Penryn-3M (2008-2011)

Intel Core 2 Duo SU9600
Intel Core 2 Duo SP9600
Intel Core 2 Duo SU9400
Intel Core 2 Duo SP9400
Intel Core 2 Duo SU9300
Intel Core 2 Duo SP9300
Intel Core 2 Duo SU7300
Intel Pentium T4500
Intel Pentium T4400
Intel Pentium T4300
Intel Pentium T4200
Intel Pentium SU4100
Intel Pentium SU2700
Intel Celeron T3500
Intel Celeron T3300
Intel Celeron T3100
Intel Celeron T3000
Intel Celeron SU2300
Intel Celeron 925
Intel Celeron 900
Intel Celeron ULV 763
Intel Celeron M ULV 743
Intel Celeron M ULV 723
Intel Celeron M ULV 722

Intel Penryn-L (2008-2009)

Intel Core 2 Solo SU3500
Intel Core 2 Solo SU3300

Intel Penryn (2008-2009)

Intel Penryn QC-XE (2008)

Intel Core 2 Extreme QX9300

Intel Penryn QC (2008)

Intel Core 2 Quad Q9100
Intel Core 2 Quad Q9000

Intel Merom-2M (2007-2008)

Intel Core 2 Duo U7700
Intel Core 2 Duo U7600
Intel Core 2 Duo U7500
Intel Pentium Dual-Core T3400
Intel Pentium Dual-Core T3200
Intel Pentium Dual-Core T2410
Intel Pentium Dual-Core T2390
Intel Pentium Dual-Core T2370
Intel Pentium Dual-Core T2330
Intel Pentium Dual-Core T2310
Intel Celeron T1700
Intel Celeron T1600
Intel Celeron T1500
Intel Celeron T1400
Intel Celeron 585
Intel Celeron 575

Intel Merom-L (2007)

Intel Core 2 Solo ULV U2200
Intel Core 2 Solo ULV U2100
Intel Celeron ULV 573
Intel Celeron M ULV 523

Intel Merom (2007)

Intel Merom-XE (2007)

Intel Core 2 Extreme X7900
Intel Core 2 Extreme X7800

Next Page > VIA Desktop + Mobile CPUs Vulnerable To Meltdown + Spectre

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VIA Desktop CPUs Vulnerable To Meltdown + Spectre

Affected Variants : These VIA CPUs are affected by all three variants of the speculative execution CPU bug. They are vulnerable to the Meltdown and both Spectre exploits.

VIA Nano QuadCore (2011)

VIA Nano QuadCore L4800E
VIA Nano QuadCore L4700E
VIA Nano QuadCore L4650E

VIA Nano Dual Core 2011)

VIA Nano X2 E L4350E
VIA Nano X2 E L4350E

VIA Nano 3000 Series (2009)

VIA Nano L3600
VIA Nano L3050
VIA Nano L3025

VIA Nano 2000 Series (2008)

VIA Nano L2200
VIA Nano L2100

VIA Mobile CPUs Vulnerable To Meltdown + Spectre

Affected Variants : These VIA CPUs are affected by all three variants of the speculative execution CPU bug. They are vulnerable to the Meltdown and both Spectre exploits.

VIA Nano Dual Core (2011)

VIA Eden X2 U4200E
VIA Eden X2 U4100E

VIA Nano 3000 Series (2010)

VIA Nano U3500
VIA Nano U3400
VIA Nano U3300
VIA Nano U3200
VIA Nano U3100

VIA Nano 2000/1000 Series (2008)

VIA Nano U2500
VIA Nano U2300
VIA Nano U2250
VIA Nano U2225
VIA Nano U1700

Meltdown + Spectre Reading Suggestions

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The Intel Spectre Reboot Issue – Everything You Need To Know! Rev. 3.0

2 Replies

The efforts to mitigate the threat of the Meltdown and Spectre exploits is officially WORSE than the threat itself. Many Intel systems are randomly and spontaneously rebooting after installing Intel Spectre 2 patches. No shit. Here is our continuing coverage of the Intel Spectre Reboot Issue!

Article Update History

Click here for the Article Update History

Updated @ 2018-03-06 : Added the latest updates on the issue, as well as the new Intel Spectre 2 microcode revision guidance slides.

Updated @ 2018-02-22 : Added the latest updates on the issue, as well as the new Intel Spectre 2 microcode revision guidance slides.

Updated @ 2018-02-14 : Added the latest updates on the issue, as well as the new Intel Spectre 2 microcode revision guidance slides.

Updated @ 2018-02-10 : Added a new section on the Intel Spectre 2 Microcode Update Schedule, and updated various parts of the article. Removed 80 Intel processors that have just been confirmed not to be affected by the buggy microcode updates.

Updated @ 2018-01-26 : Added the Intel Coffee Lake, Intel Xeon Scalable and Intel Xeon W family of processors to the list of affected CPUs. Added the updated Intel Spectre 2 Microcode Update Guidance.

Updated @ 2018-01-23 : Added a new section on the root cause of the spontaneous reboot issue, and updated guidance on what you should do about this problem. Also added the Intel microcode revision lists. Removed 129 workstation / server CPUs, 105 desktop CPUs and 143 mobile CPUs.

Updated @ 2018-01-18 : Added the latest development on the Intel spontaneous reboot issues, including a greatly-expanded list of affected Intel CPUs.

Updated @ 2018-01-16 : Added the full list of Intel CPUs with reboot issues

Originally posted @ 2018-01-13

Spontaneous Reboots With Spectre 2 Patches Updated!

On 11 January 2018, the WSJ reported that Intel was quietly asking their cloud computing customers to hold off installing Meltdown and Spectre patches because “the patches have bugs of their own“. Specifically, there were three bugs in the microcode patches they released.

In a blog post posted on the same day, Intel Executive Vice President and General Manager of the Intel Data Center Group, Navin Shenoy confirmed that Intel received reports of “higher system reboots” after applying those updates.

Basically, these systems would randomly and spontaneously reboot after installing those patches. Not something you want your computer to do, never mind servers that cater to tens or hundreds of thousands of users.

He initially confirmed that the affected systems were running Intel Broadwell and Intel Haswell CPUs, and that the issues affected both client (desktop, mobile, workstation) PCs, as well as data center servers.

But in an update a week later, Navin revealed that the newer Kaby Lake and Skylake CPUs, as well as older Sandy Bridge and Ivy Bridge processors, were also experiencing spontaneous reboot issues after updating their firmware.

Although not explicitly mentioned, the latest Intel Coffee Lake CPUs are also affected by spontaneous reboots. Hidden in their microcode revision guidance was a reference to the Coffee Lake-S processors.

In their 24 January 2018 microcode revision guidance, they further added the Intel Xeon Scalable and Intel Xeon W processor families to the list of affected CPUs.

But there’s good news – on 8 February 2018, Intel confirmed that 80 CPU models previously marked as affected have been certified to be free from the buggy microcode updates.

On 12 February 2018, Intel released beta microcode updates for some of their Coffee Lake, Broadwell and Haswell processors, and pre-beta updates for their Arrandale, Clarkdale and Gulftown processors.

On 20 February 2018, Intel released production microcode updates for their Coffee Lake, Kaby Lake and Skylake processors, with new beta microcode updates for their Haswell, Ivy Bridge and Sandy Bridge processors.

On 26 February 2018, Intel released production microcode updates for the remaining Broadwell and Haswell processors, except for their Broadwell EX and Haswell EX (server) processors.

On 1 March 2018, Intel released new beta microcode updates for their Arrandale, Clarkdale, Gulftown, Nehalem EP, Nehalem WS, Westmere EP, Westmere WS and Ivy Bridge EX (server) processors. They also started releasing pre-beta updates for their Lynnfield and Westmere EX processors. With the release of the Skylake Xeon E3 production update, the entire Intel Skylake family is fully patched.

Intel is not the first to be beset by problems in the rush to patch Meltdown and Spectre. Microsoft recently admitted that some Windows 10 updates were bricking some AMD PCs.

The Root Cause – Intel Spectre 2 Patches

On 22 January 2018, Navin Shenoy announced that Intel :

has identified the root cause for Broadwell and Haswell platforms, and
is making good progress in developing a solution to address that root cause.

They revealed that the spontaneous reboot issues seen with the affected Intel CPUs were caused by Spectre 2 mitigations in those microcode updates.

Notably, Intel only confirmed that Spectre 2 mitigations were the root cause in those two platforms. They have not confirmed Spectre 2 mitigations as the cause in the Coffee Lake, Kaby Lake, Skylake, Ivy Bridge and Sandy Bridge platforms that are also affected.

In fact, Intel shared that “The progress we have made in identifying a root cause for Haswell and Broadwell will help us address issues on other platforms. Please be assured we are working quickly to address these issues.”

What CPUs Are Affected By The Buggy Intel Spectre 2 Patches?

All of the systems suffering from spontaneous reboot issues were running on Haswell, Broadwell, Skylake, Kaby Lake and the latest Coffee Lake CPUs. Workstation and server CPUs based on Ivy Bridge and Sandy Bridge were also affected, but thankfully not their desktop brethren.

On 8 February 2018, Intel revealed that some of the microcode updates that they suspected were buggy, were actually not buggy. They include :

The Intel Skylake H/S/U/Y Desktop Processors
The Intel Xeon E3-1200 v5 Processor Family (Skylake)

We prepared the full list of CPUs affected by the buggy Intel Spectre 2 patches, but it is a VERY LONG LIST with 801 CPUs, so we split them into three sections.

As you can see, many more server and workstation CPUs are affected than desktop and mobile CPUs combined. That’s because Intel prioritised the patching of their server and workstation CPUs, over desktop and mobile CPUs.

What Is Being Done About The Buggy Intel Spectre 2 Patches?

When he first posted on the spontaneous reboot issue, Navin said that Intel was working to “understand, diagnose and address this reboot issue“.

In his latest update, he shared that Intel had already issued an early version of the new microcode updates to their partners for tests, and will release them “once that testing has been completed“.

These new microcode updates basically have Spectre 2 mitigations removed. This will restore stability to the affected Intel CPUs, while Intel fixes the problems in those mitigations.

The Intel Spectre Microcode Update Schedule Updated!

On 7 February 2018, Navin Shenoy announced that Intel has released “production microcode updates for several Skylake-based platforms” to their OEM customers and industry partners, with more platform updates “in coming days“.

The schedule was updated on 12, 20, 26 February and 1 March with more details, including production (final), pre-beta and beta versions of the new Intel Spectre microcode updates.

What Should YOU Do?

While Intel initially advised end-users to “apply updates” from system and operating system providers, they have now changed their guidance, as of 22 January 2018 :

We recommend that OEMs, Cloud service providers, system manufacturers, software vendors and end users stop deployment of current versions on the below platforms, as they may introduce higher than expected reboots and other unpredictable system behavior.
We also ask that our industry partners focus efforts on testing early versions of the updated solution for Broadwell and Haswell we started rolling out this weekend, so we can accelerate its release. We expect to share more details on timing later this week.
For those concerned about system stability while we finalize the updated solutions, we are also working with our OEM partners on the option to utilize a previous version of microcode that does not display these issues, but removes the Variant 2 (Spectre) mitigations. This would be delivered via a BIOS update, and would not impact mitigations for Variant 1 (Spectre) and Variant 3 (Meltdown).

Please note that there has been no actual recorded threat or attack using the Meltdown or Spectre exploits. The damage, or risk of damage, every time your system or server spontaneously reboot is FAR WORSE than the (currently) non-existent threat of a Meltdown or Spectre exploit.

Therefore, we recommend that you DO NOT apply any microcode update for your Intel system, if you are using any Intel processor manufactured since 2011.

If you have already applied the latest Intel Spectre microcode update, and are affected by spontaneous reboots; you should upgrade to the new firmware (if they are available), or revert to the older firmware.

Meltdown + Spectre Reading Suggestions

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Server / Workstation CPUs With Buggy Intel Spectre Patches

Intel Skylake-W (2017)

Intel Xeon W-2195
Intel Xeon W-2175
Intel Xeon W-2155
Intel Xeon W-2150B
Intel Xeon W-2145
Intel Xeon W-2140B
Intel Xeon W-2135
Intel Xeon W-2133
Intel Xeon W-2125
Intel Xeon W-2123
Intel Xeon W-2104
Intel Xeon W-2102

Intel Skylake-SP (2017)

Intel Kaby Lake-DT (2017)

Intel Xeon E3-1285 v6
Intel Xeon E3-1280 v6
Intel Xeon E3-1275 v6
Intel Xeon E3-1270 v6
Intel Xeon E3-1245 v6
Intel Xeon E3-1240 v6
Intel Xeon E3-1230 v6
Intel Xeon E3-1225 v6
Intel Xeon E3-1220 v6

Intel Kaby Lake-H (2017)

Intel Xeon E3-1535M
Intel Xeon E3-1505M
Intel Xeon E3-1505L
Intel Xeon E3-1501L
Intel Xeon E3-1501M

Intel Skylake-H (2016)

Intel Xeon E3-1585 v5
Intel Xeon E3-1585L v5
Intel Xeon E3-1578L v5
Intel Xeon E3-1575M v5
Intel Xeon E3-1565L v5
Intel Xeon E3-1558L v5
Intel Xeon E3-1545M v5
Intel Xeon E3-1535M v5
Intel Xeon E3-1515M v5
Intel Xeon E3-1505M v5
Intel Xeon E3-1505L v5

Intel Broadwell-EX (2016)

Intel E7-8894 v4
Intel E7-8893 v4
Intel E7-8891 v4
Intel E7-8890 v4
Intel E7-8880 v4
Intel E7-8870 v4
Intel E7-8867 v4
Intel E7-8860 v4
Intel E7-8855 v4
Intel E7-4850 v4
Intel E7-4830 v4
Intel E7-4820 v4
Intel E7-4809 v4

Intel Broadwell-EP (2016)

Intel Skylake-DT (2015)

Intel Xeon E5-1280 v5
Intel Xeon E5-1275 v5
Intel Xeon E5-1270 v5
Intel Xeon E5-1268L v5
Intel Xeon E5-1260L v5
Intel Xeon E5-1245 v5
Intel Xeon E5-1240 v5
Intel Xeon E5-1240L v5
Intel Xeon E5-1235L v5
Intel Xeon E5-1230 v5
Intel Xeon E5-1225 v5
Intel Xeon E5-1220 v5

Intel Broadwell-H (2015)

Intel Xeon E3-1285 v4
Intel Xeon E3-1285L v4
Intel Xeon E3-1284L v4
Intel Xeon E3-1278L v4
Intel Xeon E3-1270L v4
Intel Xeon E3-1265L v4
Intel Xeon E3-1258L v4

Intel Haswell-EX (2015)

Intel Xeon E7-8895 v3
Intel Xeon E7-8893 v3
Intel Xeon E7-8891 v3
Intel Xeon E7-8890 v3
Intel Xeon E7-8880 v3
Intel Xeon E7-8880L v3
Intel Xeon E7-8870 v3
Intel Xeon E7-8867 v3
Intel Xeon E7-8860 v3
Intel Xeon E7-4850 v3
Intel Xeon E7-4830 v3
Intel Xeon E7-4820 v3
Intel Xeon E7-4809 v3

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Intel Haswell-EN (2015)

Intel Xeon E5-2438L v3
Intel Xeon E5-2428L v3
Intel Xeon E5-2418L v3
Intel Xeon E5-2408L v3
Intel Xeon E5-1428L v3

Intel Haswell-EP (2014)

Intel Ivy Bridge-EN (2014)

Intel Xeon E5-2470 v2
Intel Xeon E5-2450 v2
Intel Xeon E5-2450L v2
Intel Xeon E5-2448L v2
Intel Xeon E5-2440 v2
Intel Xeon E5-2430 v2
Intel Xeon E5-2430L v2
Intel Xeon E5-2428L v2
Intel Xeon E5-2420 v2
Intel Xeon E5-2418L v2
Intel Xeon E5-2407 v2
Intel Xeon E5-2403 v2
Intel Xeon E5-1428L v2
Intel Xeon E5-1410 v2

Intel Haswell-WS (2013)

Intel Xeon E3-1286 v3
Intel Xeon E3-1286L v3
Intel Xeon E3-1285 v3
Intel Xeon E3-1285L v3
Intel Xeon E3-1284L v3
Intel Xeon E3-1281 v3
Intel Xeon E3-1280 v3
Intel Xeon E3-1276 v3
Intel Xeon E3-1275 v3
Intel Xeon E3-1275L v3
Intel Xeon E3-1271 v3
Intel Xeon E3-1270 v3
Intel Xeon E3-1268L v3
Intel Xeon E3-1265L v3
Intel Xeon E3-1246 v3
Intel Xeon E3-1245 v3
Intel Xeon E3-1241 v3
Intel Xeon E3-1240 v3
Intel Xeon E3-1240L v3
Intel Xeon E3-1230L v3
Intel Xeon E3-1231 v3
Intel Xeon E3-1230 v3
Intel Xeon E3-1226 v3
Intel Xeon E3-1225 v3
Intel Xeon E3-1220 v3
Intel Xeon E3-1220L v3

Intel Ivy Bridge-EP (2013)

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Desktop CPUs With Buggy Intel Spectre Patches

Intel Coffee Lake-S (2017)

Intel Core i7-8700K
Intel Core i7-8700
Intel Core i5-8600K
Intel Core i5-8400
Intel Core i3-8350K
Intel Core i3-8100

Intel Kaby Lake-X (2017)

Intel Core i7-7740X
Intel Core i5-7640X

Intel Kaby Lake-S (2017)

Intel Core i7-7700K
Intel Core i7-7700
Intel Core i7-7700T
Intel Core i5-7600K
Intel Core i5-7600
Intel Core i5-7600T
Intel Core i5-7500
Intel Core i5-7500T
Intel Core i5-7400
Intel Core i5-7400T
Intel Core i3-7350K
Intel Core i3-7320
Intel Core i3-7300
Intel Core i3-7300T
Intel Core i3-7101T
Intel Core i3-7101TE
Intel Core i3-7100
Intel Core i3-7100T
Intel Pentium G4620
Intel Pentium G4600
Intel Pentium G4600T
Intel Pentium G4560
Intel Pentium G4560T
Intel Celeron G3950
Intel Celeron G3930
Intel Celeron G3930T
Intel Celeron G3930E
Intel Celeron G3930TE

Intel Skylake-X (2017)

Intel Core i9-7980XE
Intel Core i9-7960X
Intel Core i9-7940X
Intel Core i9-7920X
Intel Core i9-7900X
Intel Core i7-7820X
Intel Core i7-7800X

Intel Broadwell-E (2016)

Intel Core i7-6950X
Intel Core i7-6900K
Intel Core i7-6850X
Intel Core i7-6800X

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Intel Broadwell-H (2015)

Intel Core i7-5775C
Intel Core i7-5775R
Intel Core i5-5675R
Intel Core i5-5675C
Intel Core i5-5575R

Intel Haswell-E (2014)

Intel Core i7-5960X
Intel Core i7-5930K
Intel Core i7-5820K

Intel Haswell-H (2013)

Intel Core i7-4770R
Intel Core i5-4670R
Intel Core i5-4570R

Intel Haswell-DT (2013)

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Mobile CPUs With Buggy Intel Spectre Patches

Intel Kaby Lake Refresh (2017)

Intel Core i7-8650U
Intel Core i7-8550U
Intel Core i5-8350U
Intel Core i5-8250U

Intel Kaby Lake-Y (2017)

Intel Core i5-Y757
Intel Core i5-Y754
Intel Core m3-7Y32
Intel Core m3-7Y30
Intel Pentium 4415Y
Intel Pentium 4410Y
Intel Celeron 3965Y

Intel Kaby Lake-U (2017)

Intel Core i7-7660U
Intel Core i7-7600U
Intel Core i7-7567U
Intel Core i7-7560U
Intel Core i7-7500U
Intel Core i5-7360U
Intel Core i5-7300U
Intel Core i5-7287U
Intel Core i5-7367U
Intel Core i5-7260U
Intel Core i5-7200U
Intel Core i3-7167U
Intel Core i3-7130U
Intel Core i3-7100U
Intel Pentium 4415U
Intel Celeron 3965U
Intel Celeron 3865U

Intel Kaby Lake-H (2016)

Intel Core i7-7920HQ
Intel Core i7-7820HQ
Intel Core i7-7820HK
Intel Core i7-7820EQ
Intel Core i7-7700HQ
Intel Core i7-7Y75
Intel Core i5-7442HQ
Intel Core i5-7442EQ
Intel Core i5-7440HQ
Intel Core i5-7440EQ
Intel Core i3-7102E
Intel Core i3-7100H
Intel Core i3-7100E

Intel Broadwell-H (2015)

Intel Core i7-5950HQ
Intel Core i7-5850HQ
Intel Core i7-5850EQ
Intel Core i7-5750HQ
Intel Core i7-5700HQ
Intel Core i7-5700EQ
Intel Core i5-5350H

Intel Broadwell-U (2015)

Intel Core i7-5650U
Intel Core i7-5600U
Intel Core i7-5557U
Intel Core i7-5550U
Intel Core i7-5500U
Intel Core i5-5350U
Intel Core i5-5300U
Intel Core i5-5287U
Intel Core i5-5257U
Intel Core i5-5250U
Intel Core i5-5200U
Intel Core i3-5157U
Intel Core i3-5020U
Intel Core i3-5015U
Intel Core i3-5010U
Intel Core i3-5005U
Intel Pentium 3825U
Intel Pentium 3805U
Intel Celeron 3765U
Intel Celeron 3755U
Intel Celeron 3215U
Intel Celeron 3205U

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Intel Broadwell-Y (2014)

Intel Core M-5Y71
Intel Core M-5Y70
Intel Core M-5Y51
Intel Core M-5Y31
Intel Core M-5Y10c
Intel Core M-5Y10a
Intel Core M-5Y10

Intel Haswell-H (2013)

Intel Haswell-ULX (2013)

Intel Core i7-4610Y
Intel Core i5-4302Y
Intel Core i5-4300Y
Intel Core i5-4220Y
Intel Core i5-4210Y
Intel Core i5-4202Y
Intel Core i3-4030Y
Intel Core i3-4020Y
Intel Core i3-4012Y
Intel Core i3-4010Y
Intel Pentium 3561Y
Intel Pentium 3560Y
Intel Celeron 2002E
Intel Celeron 2000E

Intel Haswell-ULX (2013)

Intel Celeron 2961Y

Intel Haswell-ULT (2013)

Intel Haswell-MB (2013)

Intel Core i7-4940MX
Intel Core i7-4930MX
Intel Core i7-4910MQ
Intel Core i7-4900MQ
Intel Core i7-4810MQ
Intel Core i7-4800MQ
Intel Core i7-4712MQ
Intel Core i7-4710MQ
Intel Core i7-4702MQ
Intel Core i7-4610M
Intel Core i7-4600M
Intel Core i5-4340M
Intel Core i5-4330M
Intel Core i5-4310M
Intel Core i5-4300M
Intel Core i5-4210M
Intel Core i5-4200M
Intel Core i3-4110M
Intel Core i3-4100M
Intel Core i3-4010M
Intel Core i3-4000M
Intel Pentium 3560M
Intel Pentium 3550M
Intel Celeron 2970M
Intel Celeron 2950M

Meltdown + Spectre Reading Suggestions

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The Complete AMD Spectre Mitigation Strategy Guide Rev. 2.0

1 Reply

Intel have been rushing out their Meltdown and Spectre patches (with some unfortunate side effects), but what about AMD? We present to you – The AMD Spectre Mitigation Strategy Guide!

Article Update History

Click here for the Article Update History

Updated @ 2018-02-28 : Added a new page on the AMD Spectre 2 hardware mitigation options.

Originally posted @ 2018-02-01

Only Spectre

Now that the dust has settled, we know that AMD processors are completely invulnerable to Meltdown, but are vulnerable to both Spectre exploits. Therefore, AMD only needs to mitigate against the two Spectre exploits.

Variant 1 : Bounds Check Bypass (CVE-2017-5753)
Variant 2 : Branch Target Injection (CVE-2017-5715)

AMD Spectre Mitigation Overview

GPZ Variant 1 (Spectre 1)

In the Spectre 1 (GPZ Variant 1) exploit, a malware can make use of the processor’s speculative execution capability to bypass the memory bounds check, thereby accessing memory that it did not have permission for.

AMD is recommending software-only solutions for Spectre 1, which include operating system kernels, JIT (Just In Time) compilers, browsers and other user applications.

AMD recommends the V1-1 (lfence) software solution for the GPZ Variant 1 (Spectre 1) exploit.

GPZ Variant 2 (Spectre 2)

In the Spectre 2 (GPZ Variant 2) exploit, a malware may trick the CPU branch predictor into mis-predicting the wrong path, thereby speculatively executing code that would not otherwise be executed.

AMD offers both software-only, and software + hardware mitigations, for Spectre 2.

AMD recommends the V2-1 (retpoline) option for the GPZ Variant 2 (Spectre 2) exploit.

The AMD Spectre Mitigation Options

AMD has so far offered 11 Spectre mitigation options, divided into three categories :

AMD Spectre 1 + 2 mitigations : G-1 | G-2 | G-3 | G-4
AMD Spectre 1 mitigations : V1-1 | V1-2 | V1-3
AMD Spectre 2 mitigations : V2-1 | V2-2 | V2-3 | V2-4
AMD Spectre 2 hardware mitigations : IBPB | IBRS | STIBP

Meltdown + Spectre Reading Suggestions

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AMD Spectre 1 + 2 Mitigation Options

AMD Spectre Mitigation G-1

Target : Spectre 1 and Spectre 2

Technique : Clear out untrusted data from registers (e.g. write 0) when entering more privileged modes, or sensitive code.

Effect : By removing untrusted data from registers, the CPU will not be able to speculatively execute operations using the values in those registers.

Applicability : All AMD processors.

Note : Instructions that cause the machine to temporarily stop inserting new instructions into the machine for execution and wait for execution of older instructions to nish are referred to as dispatch serializing instructions.

AMD Spectre Mitigation G-2

Target : Spectre 1 and Spectre 2

Technique : Set an MSR in the processor so that LFENCE is a dispatch serializing instruction and then use LFENCE in code streams to serialize dispatch (LFENCE is faster than RDTSCP which is also dispatch serializing). This mode of LFENCE may be enabled by setting MSR C001_1029[1]=1.

Effect : Upon encountering an LFENCE when the MSR bit is set, dispatch will stop until the LFENCE instruction becomes the oldest instruction in the machine.

Applicability : All AMD family 10h/12h/14h/15h/16h/17h processors support this MSR. LFENCE support is indicated by CPUID function1 EDX bit 26, SSE2. AMD family 0Fh/11h processors support LFENCE as serializing always, but do not support this MSR. AMD plans support for this MSR and access to this bit for all future processors.

AMD Spectre Mitigation G-3

Target : Spectre 1 and Spectre 2

Technique : Enable Supervisor Mode Execution Protection (SMEP).

Effect : The processor will never speculatively fetch instruction bytes in supervisor mode if the RIP address points to a user page. This prevents the attacker from redirecting the kernel indirect branch to a target in user code.

Applicability : All AMD processors that support SMEP (Family 17h, Family 15h model >60h)

Note : The load-store unit is a key area for controlling speculation because information leakage comes from the residual nature of cache lines after a speculative fill.

AMD Spectre Mitigation G-4

Target : Spectre 1 and Spectre 2

Technique : Enable SMAP (Supervisor Mode Access Protection)

Effect : The processor will never initiate a fill if the translation has a SMAP violation (kernel accessing user memory). This can prevent the kernel from bringing in user data cache lines. With SMEP and SMAP enabled the attacker must nd an indirect branch to attack in the area marked by SMAP that is allowed to access user marked memory.

Applicability : All AMD processors that support SMAP ( family 17h and greater)

Next Page > Separate AMD Spectre 1 + Spectre 2 Mitigations

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AMD Spectre 1 Mitigation Options

AMD Spectre Mitigation V1-1

Target : Spectre 1 only

Technique : With LFENCE serializing, use it to control speculation for bounds checking. For instance, consider the following code:

1: cmp eax, [buffer_top] ; compare eax (index) to upper bound

2: ja out_of_bounds ; if greater, index is too big

3: mov ebx, [eax] ; read buffer

In this code, the CPU can speculative execute instruction 3 (mov) if it mispredicts the branch at 2 (ja). If this is undesirable, software should implement:

1: cmp eax, [buffer_top] ; compare eax (index) to upper bound

2: ja out_of_bounds ; if greater, index is too big

3: lfence ; serializes dispatch until branch

4: mov ebx, [eax] ; read buffer

Effect : In the second code sequence, the processor cannot execute op 4 because dispatch is stalled until the branch target is known.

Applicability : All AMD processors.

AMD Spectre Mitigation V1-2

Target : Spectre 1 only

Technique : Create a data dependency on the outcome of a compare to avoid speculatively executing instructions in the false path of the branch. For instance, consider the following code:

1: cmp eax, [buffer_top] ; compare eax (index) to upper bound

2: ja out_of_bounds ; if greater, index is too big

3: mov ebx, [eax] ; read buffer

In this code, the CPU can speculative execute instruction 3 (mov) if it mispredicts the branch at 2 (ja). If this is undesirable, software should implement:

1: xor edx, edx

2: cmp eax, [buffer_top] ; compare eax (index) to upper bound

3: ja out_of_bounds ; if greater, index is too big

4: cmova eax, edx ; NEW: dummy conditional mov

5: mov ebx, [eax] ; read buffer

Effect : In the second code sequence, the processor cannot execute op 4 (cmova) because the ags are not available until after instruction 2 (cmp) nishes executing. Because op 4 cannot execute, op 5 (mov) cannot execute since no address is available.

Applicability : All AMD processors.

AMD Spectre Mitigation V1-3

Target : Spectre 1 only

Technique : Create a data dependency on the outcome of a compare to mask the array index to keep it within bounds. For instance, consider the following code:

1: cmp eax, [buffer_top] ; compare eax (index) to upper bound

2: ja out_of_bounds ; if greater, index is too big

3: mov ebx, [eax] ; read buffer

In this code, the CPU can speculative execute instruction 3 (mov) if it mispredicts the branch at 2 (ja). If this is undesirable, software should implement:

1: cmp eax, [buffer_top] ; compare eax (index) to upper bound

2: ja out_of_bounds ; if greater, index is too big

3: and eax, $MASK ; NEW: Mask array index

4: mov ebx, [eax] ; read buffer

Effect : In the second code sequence, the processor will mask the array index before the memory load constraining the range of addresses that can be speculatively loaded. For performance it is best if $MASK is an immediate value.

Applicability : All AMD processors. This mitigation works best for arrays that are power-of-2 sizes but can be used in all cases to limit the range of addresses that can be loaded.

Note : In the case of RET instructions, RIP values are predicted using a special hardware structure that tracks CALL and RET instructions called the return stack bu er. Other indirect branches (JMP, CALL) are predicted using a branch target bu er (BTB) structure. While the mechanism and structure of this buffer varies significantly across AMD processors, branch predictions in these structures can be controlled with software changes to mitigate variant 2 attacks.

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AMD Spectre 2 Mitigation Options

AMD Spectre Mitigation V2-1

Target : Spectre 2 only

Technique : Convert indirect branches into a “retpoline”. Retpoline sequences are a software construct which allows indirect branches to be isolated from speculative execution. It uses properties of the return stack bu er (RSB) to control speculation. The RSB can be lled with safe targets on entry to a privileged mode and is per thread for SMT processors. So instead of

1: jmp *[eax] ; jump to address pointed to by EAX2:

To this:

1: call l5 ; keep return stack balanced

l2: pause ; keep speculation to a minimum

3: lfence

4: jmp l2

l5: add rsp, 8 ; assumes 64 bit stack

6: push [eax] ; put true target on stack

7: ret

and this 1: call *[eax] ;

To this:

1: jmp l9

l2: call l6 ; keep return stack balanced

l3: pause

4: lfence ; keep speculation to a minimum

5: jmp l3

l6: add rsp, 8 ; assumes 64 bit stack

7: push [eax] ; put true target on stack

8: ret

L9: call l2

Effect : This sequence controls the processor’s speculation to a safe known point. The performance impact is likely greater than V2-2 but more portable across the x86 architecture. Care needs to be taken for use outside of privileged mode where the RSB was not cleared on entry or the sequence can be interrupted. AMD processors do not put RET based predictions in BTB type structures.

Applicability : All AMD processors.

AMD Spectre Mitigation V2-2

Target : Spectre 2 only

Technique : Convert an indirect branch into a dispatch serializing instruction sequence where the load has nished before the branch is dispatched. For instance, change this code:

1: jmp *[eax] ; jump to address pointed to by EAX2:

To this:

1: mov eax, [eax] ; load target address

2: lfence ; dispatch serializing instruction

3: jmp *eax

Effect : The processor will stop dispatching instructions until all older instructions have returned their results and are capable of being retired by the processor. At this point the branch target will be in the general purpose register (eax in this example) and available at dispatch for execution such that the speculative execution window is not large enough to be exploited.

Applicability : All AMD processors. AMD plans that this sequence will continue to work on future processors until support for other architectural means to control indirect branches are introduced.

AMD Spectre Mitigation V2-3

Target : Spectre 2 only

Technique : Execute a series of CALL instructions upon entering more privileged code to ll up the return address predictor.

Effect : The processor will only predict RET targets to the RIP values in the return address predictor, thus preventing attacker controlled RIP values from being predicted.

Applicability : All AMD processors. The size of the return address predictor varies by processor, all current AMD processors have a return address predictor with 32 entries or less. Future processors that have more than 32 RSB entries are planned to be architected to not require software intervention.

AMD Spectre Mitigation V2-4

Target : Spectre 2 only

Technique : An architectural mechanism, Indirect Branch Control (IBC), is being added to the x86 ISA to help software control branch prediction of jmp near indirect and call near indirect instructions. It consists of 3 features: Indirect Branch Prediction Barrier (IBPB), Indirect Branch Restricted Speculation (IBRS) and Single Thread Indirect Branch Predictors (STIBP).

Effect : These features give software another mechanism through architectural MSRs to provide mitigation for different variant 2 exploits.

IBPB – Places a barrier such that indirect branch predictions from earlier execution cannot in uence execution after the barrier.
IBRS – Restricts indirect branch speculation when set.
STIBP – Provides sibling thread protection on processors that require sibling indirect branch prediction protection

Applicability : As a new feature, these mechanism are available in only a limited number of current AMD processors and require a microcode patch. These 3 features are individually enumerated through CPUID and all processors do not support all features. These features also require software updates to write the MSR where appropriate.

Note : After a RIP value is predicted, the new RIP value is sent through a TLB and table walker pipeline before instruction bytes can be fetched and sent for execution.

Next Page > AMD Spectre 2 Hardware Mitigations

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AMD Spectre 2 Hardware Mitigation Options

On 7 February, AMD revealed three AMD64 mechanisms to mitigate against Spectre 2 (indirect branch target injection). They are designed to increase control of indirect branches, and identified by CPU ID bits.

Feature	AMD Version (CPUID Function)	MSR Exist
Indirect Branch Prediction Barrier (IBPB)	8000_0008 EBX[12]=1	PRED_CMD (MSR 49)
Indirect Branch Restricted Speculation (IBRS)	8000_0008 EBX[14]=1	SPEC_CTRL (MSR 48)
Single Thread Indirect Branch Prediction (STIBP)	8000_0008 EBX[15]=1	SPEC_CTRL (MSR 48)

AMD IBPB Hardware Mitigation

Target : Spectre 2 only

Technique : This is a write-only MSR (model-specific register) that, when written with a 0, prevents older indirect branches from influencing predictions of indirect branches in the future. This applies to jmp indirects, call indirects and returns.

As this feature prevents the processor from using all previous indirect branch information, it is meant to be used only when a software switches from one user context to another that requires protection.

CPUID Function 8000_0008, EBX[16]=1 indicates an IBRS always on mode. The processor prefers that IBRS is only set once during boot and not changed.

If IBRS is set on a processor supporting IBRS always on mode, indirect branches executed in a less privileged prediction mode will not influence branch predictions for indirect branches in a more privileged prediction mode.

This also reduces the performance impact of the WRMSR (Write to Model Specific Register) on less privileged to more privileged entry point and the WRMSR on more privileged to less privileged exit points.

AMD IBRS Hardware Mitigation

Target : Spectre 2 only

Technique : Indirect Branch Restricted Speculation (IBRS) exists at MSR 0x48 (SPEC_CTRL) bit 0.

When this bit is set, it keeps indirect branches that occurred in a lesser prediction mode from before it was set from influencing the future indirect branches that are going to execute now while IBRS is 1. A lesser prediction mode is CPL 3 vs CPL[2-0] and Guest vs Host mode.

If software clears IBRS, it is now allowed for the older indirect branches that occurred when IBRS was 0 to be used to influence the indirect branches.

It is also possible that while IBRS is 1, another write of 1 to IBRS bit 0 occurs. This starts a new window where older indirect branches should not influence future indirect branches.

Therefore if IBRS were set in a lesser privilege mode, on a transition to a more privileged mode the more privileged mode would have to set IBRS to 1 to indicate to hardware that it wants branches in the more privileged mode separated from those in the lesser privileged mode with IBRS set.

On processors with a shared indirect branch predictor, IBRS being set provides protection from being influenced by a sibling thread’s indirect branch predictions. For the ret type of indirect branch, software is responsible for clearing out the return stack buffer with 32 calls that have a non-zero target.

Processors that support more than 32 RSB (Return Stack Buffer) entries will be responsible for clearing the extra RSB entries. Clearing out the return stack buffer maybe required on the transition from CPL3 to CPL0, even if the OS has SMEP enabled.

CPUID Function 8000_0008, EBX[18]=1 indicates that the processor prefers using the IBRS feature instead of other software mitigations such as retpoline. This allows software to remove the software mitigation and utilize the better performing IBRS mechanism.

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AMD STIBP Hardware Mitigation

Target : Spectre 2 only

Technique : The Single Thread Indirect Branch Predictor (STIBP) exists at MSR 0x48 (SPEC_CTRL) bit 1.

When this bit is set in processors that share branch prediction information, indirect branch predictions from sibling threads cannot influence the predictions of other sibling threads. Return instructions are always immune to influence by the other thread and do not require this bit to be set for protection.

Any attempt to write SPEC_CTRL bits 63:2 results in general protection fault (GP fault). If a processor only supports STIBP (bit 1) for ease of software implementation, the processor does not GP fault attempts to write bit 0. In a similar manner, if a processor only supports IBRS, attempts to set STIBP do not GP fault.

Both SPEC_CTRL and PRED_CMD are not architecturally serializing WRMSRs. They are still execution serializing and prevent any execution of future instructions until they have completed.

CPUID Function 8000_0008, EBX[17]=1 indicates an STIBP always on mode. The processor prefers that STIBP is only set once during boot and not changed. This reduces the performance impact of the WRMSR (Write to Model Specific Register) at the necessary toggle points.

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The Microsoft Spectre + Meltdown Patch Schedule Rev. 2.0

4 Replies

Ever since the Meltdown and Spectre exploits were exposed, Microsoft has been working overtime to patch Windows against them. Unfortunately, they were quite secretive about their Spectre and Meltdown patch list and schedule. We usually only find out when something bad happens, like when some patches bricked AMD systems.

They changed that stance recently, quietly releasing their Windows Spectre and Meltdown patch schedule. This schedule listed the patches they have released so far, or are about to release. For your convenience, we have divided and sorted them according to the applicable Windows version.

Please note that the current Microsoft Spectre and Meltdown patch schedule covers the January and February 2018. We will update the schedule as and when Microsoft releases them.

Article Update History

Click here for the Article Update History

Updated @ 2018-02-22 : Added the late January and early February 2018 Spectre and Meltdown patch schedule for Windows 10 and Windows Server 2016.

Originally posted @ 2018-01-24

The Spectre + Meltdown Patch Schedule For Windows 10

Update Title	Status	Release Date	Release Channel	Knowledge Base
Windows 10 (1703) – Quality Update	Released	February 13	WU, WSUS, Catalog	KB4074592
Windows 10 (1607) – Quality Update	Released	February 13	WU, WSUS, Catalog	KB4074590
Windows 10 (1511) – Quality Update	Released	February 13	WU, WSUS, Catalog	KB4074591
Windows 10 (RTM) – Quality Update	Released	February 13	WU, WSUS, Catalog	KB4074596
Windows 10 (1709) – Quality Update	Released	January 31	WU, Catalog	KB4058258
Windows 10 (1709) – Quality Update	Released	January 3	WU, WSUS, Catalog, Azure Image Gallery	KB4056892 *
Windows 10 (1703) – Quality Update	Released	January 3	WU, WSUS, Catalog	KB4056891 *
Windows 10 (1607) – Quality Update	Released	January 3	WU, WSUS, Catalog	KB4056890
Windows 10 (1511) – Quality Update	Released	January 3	WU, WSUS, Catalog	KB4056888 *
Windows 10 (RTM) – Quality Update	Released	January 3	WU, WSUS, Catalog	KB4056893 *

* KB4056888, KB4056890, KB4056891, KB4056892, KB4056893 can brick some AMD PCs.

The Spectre + Meltdown Patch Schedule For Windows Server 2016

Update Title	Status	Release Date	Release Channel	Knowledge Base
Windows Server 2016 (1607) – Container Images	Released	February 13	Docker Hub	KB4074590
Windows Server 2016 (1607) – Quality Update	Released	February 13	WU, WSUS, Catalog	KB4074590
Windows Server 2016 (1709) – Server container	Released	February 13	Docker Hub	KB4074588
Windows Server 2016 (1709) – Quality Update	Released	January 31	WU, Catalog	KB4058258
Windows Server 2016 (1709) – Quality Update	Released	January 3	WU, WSUS, Catalog, Azure Image Gallery	KB4056892 *
Windows Server 2016 (1709) – Server container	Released	January 5	Docker Hub	KB4056892 *
Windows Server 2016 (1607) – Quality Update	Released	January 3	WU, WSUS, Catalog	KB4056890 *
Windows Server 2016 (1607) – Container Images	Released	January 4	Docker Hub	KB4056890 *

* KB4056890, KB4056892 can brick some AMD PCs.

The Spectre + Meltdown Patch Schedule For Windows 10 Mobile

Update Title	Status	Release Date	Release Channel	Knowledge Base
Windows 10 Mobile (OS Build 15254.192) – ARM	Released	January 5	WU, Catalog	KB4073117
Windows 10 Mobile (OS Build 15063.850)	Released	January 5	WU, Catalog	KB4056891
Windows 10 Mobile (OS Build 14393.2007)	Released	January 5	WU, Catalog	KB4056890

The Spectre + Meltdown Patch Schedule For Windows 10 IoT Core

Update Title	Status	Release Date	Release Channel	Knowledge Base
Windows 10 IoT Core (1703) – Quality Update	Released	February 13	WU, WSUS, Catalog	KB4074592
Windows 10 IoT Core (1607) – Quality Update	Released	February 13	WU, WSUS, Catalog	KB4074590
Windows 10 IoT Core (1511) – Quality Update	Released	February 13	WU, WSUS, Catalog	KB4074591
Windows 10 IoT Core (1709) – Quality Update	Released	January 31	WU, Catalog	KB4058258
Windows 10 IoT Core (1709) – Quality Update	Released	January 3	WU, WSUS, Catalog, Azure Image Gallery	KB4056892 *
Windows 10 IoT Core (1703) – Quality Update	Released	January 3	WU, WSUS, Catalog	KB4056891 *
Windows 10 IoT Core (1607) – Quality Update	Released	January 3	WU, WSUS, Catalog	KB4056890 *
Windows 10 IoT Core (1511) – Quality Update	Released	January 3	WU, WSUS, Catalog	KB4056888 *

* KB4056888, KB4056890, KB4056891, KB4056892 can brick some AMD PCs.

The Spectre + Meltdown Patch Schedule For Windows 10 HoloLens

Update Title	Status	Release Date	Release Channel	Knowledge Base
Windows 10 HoloLens – OS and Firmware Updates	Released	February 13	WU, Catalog	KB4074590
Windows 10 HoloLens	Released	January 5	WU, Catalog	KB4056890 *

* KB4056890 can brick some AMD PCs.

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The Spectre + Meltdown Patch Schedule For Windows 8 & 8.1

Update Title	Status	Release Date	Release Channel	Knowledge Base
Windows 8.1 – Security Only Update	Released	January 3	WSUS, Catalog	KB4056898 *
Windows Embedded 8.1 Industry Enterprise	Released	January 3	WSUS, Catalog	KB4056898 *
Windows Embedded 8.1 Industry Pro	Released	January 3	WSUS, Catalog	KB4056898 *
Windows Embedded 8.1 Pro	Released	January 3	WSUS, Catalog	KB4056898 *
Internet Explorer 11-Cumulative Update for Windows 8.1	Released	January 3	WU, WSUS, Catalog	KB4056894 *
Windows 8.1 Monthly Rollup	Released	January 8	WU, WSUS, Catalog	KB4056895 *
Windows Embedded 8.1 Industry Enterprise	Released	January 8	WU, WSUS, Catalog	KB4056895 *
Windows Embedded 8.1 Industry Pro	Released	January 8	WU, WSUS, Catalog	KB4056895 *
Windows Embedded 8.1 Pro	Released	January 8	WU, WSUS, Catalog	KB4056895 *
Windows Embedded 8 Standard	Coming

* KB4056894, KB4056895, KB4056898 can brick some AMD PCs.

The Spectre + Meltdown Patch Schedule For Windows Server 2012

Update Title	Status	Release Date	Release Channel	Knowledge Base
Windows Server 2012 R2 – Security Only Update	Released	January 3	WSUS, Catalog	KB4056898 *
Windows Server 2012 R2 Monthly Rollup	Released	January 8	WU, WSUS, Catalog	KB4056895 *
Windows Server 2012 Security Only	Coming		WSUS, Catalog
Windows Server 2012 Monthly Rollup	Coming		WU, WSUS, Catalog

* KB4056895, KB4056898 can brick some AMD PCs.

The Spectre + Meltdown Patch Schedule For Windows Server 2008

Update Title	Status	Release Date	Release Channel	Knowledge Base
Windows Server 2008 R2 SP1 – Security Only Update	Released	January 3	WSUS, Catalog	KB4056897 *
Windows Server 2008 R2 SP1 Monthly Rollup	Released	January 4	WU, WSUS, Catalog	KB4056894 *
Windows Server 2008 SP2	Coming		WU, WSUS, Catalog

* KB4056897, KB4056894 can brick some AMD PCs.

The Spectre + Meltdown Patch Schedule For Windows 7

Update Title	Status	Release Date	Release Channel	Knowledge Base
Windows 7 SP1 – Security Only Update	Released	January 3	WSUS, Catalog	KB4056897 *
Windows Embedded Standard 7	Released	January 3	WSUS, Catalog	KB4056897 *
Windows Embedded POSReady 7	Released	January 3	WSUS, Catalog	KB4056897 *
Windows Thin PC	Released	January 3	WSUS, Catalog	KB4056897 *
Internet Explorer 11-Cumulative Update for Windows 7 SP1	Released	January 3	WU, WSUS, Catalog	KB4056894 *
Windows 7 SP1 Monthly Rollup	Released	January 4	WU, WSUS, Catalog	KB4056894 *
Windows Embedded Standard 7	Released	January 4	WU, WSUS, Catalog	KB4056894 *
Windows Embedded POSReady 7	Released	January 4	WU, WSUS, Catalog	KB4056894 *
Windows Thin PC	Released	January 4	WU, WSUS, Catalog	KB4056894 *

* KB4056897, KB4056894 can brick some AMD PCs.

Meltdown + Spectre Reading Suggestions

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Everything On The Meltdown + Spectre CPU Flaws! Rev. 3.0

14 Replies

The Meltdown and Spectre CPU flaws that the Google Project Zero team discovered are arguably the worst we have ever known. These vulnerabilities were built into BILLIONS of CPUs that we have been using for the last decade or so.

Not just Intel CPUs, but also CPUs made by AMD, Apple and ARM. Even those that power our smartphones and other smart devices!

Let’s take a look at what we know so far about Meltdown and Spectre, how they affect you, and what we can do about them.

This story is still developing. We will update the article as and when new details emerge. Be sure to check back and refresh the page for the latest information!

Article Update History

Click here for the Article Update History

2018-02-17 : Updated the table of CPUs vulnerable to Meltdown and Spectre. Updated four sections with new information.

2018-02-05 : Added a table of CPUs vulnerable to Meltdown and Spectre. Updated three sections with new information.

2018-01-25 : Revamped the entire article. Added a new section on the difference between Meltdown and Spectre, and a new section on InSpectre. Updated the list of vulnerable processors, mitigation efforts by Microsoft and Apple, as well as the Intel spontaneous reboot issues with their Spectre 2 patches.

2018-01-16 : Updated the list of vulnerable processors, and added a new section on Intel CPUs spontaneously rebooting after applying Meltdown and Spectre patches. Also added cautionary advice on holding off these updates.

2018-01-12 : Updated the article with the AMD confirmation that their processors are vulnerable to both Spectre exploits. Also added details on the Google Retpoline mitigation technique against Spectre attacks.

2018-01-11 : Added new sections on the performance impact of the Meltdown and Spectre mitigation patches, and reports of those patches bricking some AMD PCs. Also expanded the list of affected CPUs, and corrected information on the Intel-SA-00086 Detection Tool.

Between 2018-01-09 and 2018-01-10 : Numerous updates including details of patches and affected CPUs.

Originally posted @ 2018-01-09

The Meltdown + Spectre Vulnerabilities

The Project Zero team identified these vulnerabilities in 2017, reporting it to Intel, AMD and ARM on 1 June 2017.
These vulnerabilities take advantage of the Speculative Execution and Branch Prediction features of the modern processor, that have been used for many years to improve performance.
Speculative Execution lets the CPU predict and pre-execute the next instruction, allowing it to “instantly” deliver the results if it’s correct.
Branch Prediction helps the CPU predict future execution paths that should be speculatively-executed for better performance.
There are THREE (3) variants of the speculative execution CPU bug :
- Variant 1 : Bounds Check Bypass (CVE-2017-5753)
- Variant 2 : Branch Target Injection (CVE-2017-5715)
- Variant 3 : Rogue Data Cache Load (CVE-2017-5754)
The Spectre attack (whitepaper) exploits variants 1 and 2.
The Meltdown attack (whitepaper) exploits variant 3.
There is a Variant 3a, which appears to affect only certain ARM processors.

What’s The Difference Between Meltdown & Spectre?

Spectre tricks the CPU branch predictor into mis-predicting the wrong path, thereby speculatively executing code that would not otherwise be executed.
Meltdown takes advantage of the out-of-order execution capability of modern processors, tricking them into executing malicious code that would normally not be allowed.
The Spectre name is based on both the root cause – speculative execution, and the fact that it is not easy to fix, and will haunt us for a long time like a spectre (ghost).
The Meltdown name was chosen because the vulnerability “basically melts security boundaries which are normally enforced by the hardware“.

How Bad Are Meltdown & Spectre?

The Spectre exploits let an attacker access and copy information from the memory space used by other applications.
The Meltdown exploit lets an attacker copy the entire physical memory of the computer.
Unless patched, the affected processors are vulnerable to malware and cyberattacks that exploits this CPU bug to steal critical information from running apps (like login and credit card information, emails, photos, documents, etc.)
While the Meltdown exploit can be “fixed”, it is likely that the Spectre exploit cannot be fixed, only mitigated, without a redesign of the processors. That means we will have to live with the risks of a Spectre attack for many more years to come.

How Many Processors Are Affected? Updated!

For the complete list of affected AMD, Apple, ARM and Intel processors, please see this separate article – The Complete List Of CPUs Vulnerable To Meltdown / Spectre

Company	Spectre 1	Spectre 2	Meltdown
AMD	295 Server CPUs 42 Workstation CPUs 396 Desktop CPUs 208 Mobile CPUs	295 Server CPUs 42 Workstation CPUs 396 Desktop CPUs 208 Mobile CPUs	None
Apple	13 Mobile SoCs	13 Mobile SoCs	13 Mobile SoCs
ARM	10 Mobile CPUs 3 Server SoCs	10 Mobile CPUs 3 Server SoCs	4 Mobile CPUs 3 Server SoCs
IBM	10 POWER CPUs	10 POWER CPUs	10 POWER CPUs
Intel	732 Server / Workstation CPUs 443 Desktop CPUs 583 Mobile CPUs 51 Mobile SoCs	732 Server / Workstation CPUs 443 Desktop CPUs 583 Mobile CPUs 51 Mobile SoCs	732 Server / Workstation CPUs 443 Desktop CPUs 583 Mobile CPUs 51 Mobile SoCs
Total	2786 CPUs	2786 CPUs	1839 CPUs

For the complete list of affected AMD, Apple, ARM and Intel processors, please see this separate article – The Complete List Of CPUs Vulnerable To Meltdown / Spectre

Intel Detection Tool?

The Intel-SA-00086 Detection Tool does NOT detect the processor’s susceptibility to these vulnerabilities. It only checks for different vulnerabilities affecting the Intel Management Engine.

InSpectre

Our reader Arthur shared that the Gibson Research Corporation has an aptly-named utility called InSpectre.

It checks for Meltdown and Spectre hardware and software vulnerabilities in a Windows system. It will help you check if your system is getting patched properly against these vulnerabilities.

What Is Being Done??? Updated!

Note : The terms “mitigate” and “mitigation” mean the possibility of a successfully attacked are reduced, not eliminated.

Intel has started issuing software and firmware updates for the processors introduced in the last 5 years. By the middle of January 2018, Intel expects to have issued updates for more than 90% of those CPUs. However, that does not address the other Intel processors sold between 2010 and 2012.
Microsoft and Linux have started to roll our the KPTI (Kernel Page Table Isolation) patch, also known as the KAISER (Kernel Address Isolation to have Side-channels Efficiently Removed) patch.
The KPTI or KAISER patch, however, will only protect against the Meltdown exploit. It has no effect on a Spectre attack.
Microsoft Edge and Internet Explorer 11 received the KB4056890 security update on 3 January 2018, to prevent a Meltdown attack.
Firefox 57 includes changes to mitigate against both attacks.
Google Chrome 64 will be released on 23 January 2018, with mitigations against Meltdown and Spectre attacks.
For Mac systems, Apple introduced mitigations against Spectre in macOS 10.13.2 (released on 8 January 2018), with more fixes coming in macOS 10.13.3.
For iOS devices, Apple introduced mitigations against Meltdown in iOS 11.2 and tvOS 11.2.
On 8 January 2018, Apple released iOS 11.2.2, which mitigates the risk of the two Spectre exploits in Safari and WebKit, for iPhone 5s, iPad Air, and iPod touch 6th generation or later.
ARM has made available the KPTI / KAISER kernel patches for Linux, while Google will provide them for Android.
Google patched Android against both exploits with the December 2017 and January 2018 patches.
Google shared details of their Return Rrampoline (Retpoline) binary modification technique that can be used to protect against Spectre attacks. It is a software construct that ensures that any associated speculative execution will “bounce” (as if on a trampoline) endlessly.
NVIDIA issued six driver and security updates for affected devices and software between 3-9 January 2018.
On 11 January 2018, AMD announced that the “majority of AMD systems” have received the mitigation patches against Spectre 1, albeit some older AMD systems got bricked by bad patches. They also announced that they will make “optional” microcode updates available for Ryzen and EPYC processors by the same week.
In the same 11 January 2018 disclosure, AMD also shared that Linux vendors have started to roll out OS patches for both Spectre exploits, and they’re working on the “return trampoline (Retpoline)” software mitigations as well.[adrotate group=”2″]
On 23 January 2018, Apple released Meltdown patches for macOS Sierra and OS X El Capitan, but not macOS High Sierra.
On 23 January 2018, Microsoft finally revealed their Spectre and Meltdown patch schedule.
On 24 January 2018, AMD revealed their 11 software mitigations for both Spectre exploits.
The 24 January 2018 AMD whitepaper also revealed that the AMD K10 and K8 processors are vulnerable as well, adding an additional 663 CPU models to the list of vulnerable processors.
On 2 February 2018, Microsoft released KB4078130 to disable the Spectre 2 patches that were causing many Intel systems to randomly and spontaneously reboot.
On 8 February 2018, an Intel microcode update schedule revealed that their Penryn-based processors are also vulnerable, adding an additional 314 CPU models to the list of vulnerable processors.
On 14 February 2018, Intel revealed an expanded Bug Bounty Program, offering up to $250,000 in bounty awards.

Some AMD PCs Got Bricked

In the rush to mitigate against Meltdown and Spectre, Microsoft released Windows 10 patches that bricked some AMD PCs. They blamed the incorrect / incomplete documentation provided by AMD.

You can read more about this issue @ These Windows 10 Updates Are Bricking AMD PCs!

Buggy Intel Spectre 2 Patches Updated!

Intel’s rush to patch Meltdown and Spectre resulted in buggy microcode patches, causing several generations of their CPUs to randomly and spontaneously reboot.

So far, over 800 Intel CPU models have been identified to be affected by these spontaneous reboot issues. If you have one of the affected CPUs, please hold off BIOS / firmware updates!

Intel has identified the cause as the Spectre 2 patches in their microcode updates for some of these processors. They’re still investigating the cause of the other affected CPU models.

Fortunately for Windows users, Microsoft issued the KB4078130 emergency update to stop the reboots while Intel worked to fix the issue.

You can read more about this issue @ The Intel Spectre Reboot Issue, and the Microsoft solution @ KB4078130 : Emergency Windows Update To Disable Intel Spectre Patches!

What Should You Do? Updated!

First and foremost – DO NOT PANIC. There is no known threat or attack using these exploits.

Although we listed a number of important patches below, the buggy updates are worse than the potential threat they try to fix. So we advise HOLDING OFF these patches, and wait for properly-tested versions a few weeks down the line.

If you are using Windows, make sure you install the latest Microsoft Spectre and Meltdown updates.
If you are using a Mac system, get the latest Apple Spectre and Meltdown patches.
If you are using an iOS device, get updated to iOS 11.2 or tvOS 11.2.
If you are using Firefox, update to the latest Firefox 57.
If you are using Google Chrome, make sure you watch out for Chrome 64, which will be released on 23 January.
Download and install the latest software firmware updates from your PC, laptop, motherboard brands. In particular, install the latest driver for the Intel Management Engine (Intel ME), the Intel Trusted Execution Engine (Intel TXE), and the Intel Server Platform Services (SPS)
If you are running an ARM processor on Linux, grab the kernel patches.
IBM POWER system users can download and install these firmware updates.
Users of affected NVIDIA systems can download and install these driver and firmware updates.
If you are using an Intel system, hold off updating your firmware, unless you have already verified that your CPU is not affected by the buggy Intel patches, or Intel has already issued corrected patches.

The Performance Impact Of The Mitigation Patches

Many benchmarks have been released, showing performance impacts of between 5% to 30%, depending on the type of benchmark and workload. Microsoft has called those benchmark results into question, stating that they did not cover both operating system and silicon microcode patches.

They released an initial report on their findings, which we have summarised in our article – Pre-2016 Intel CPUs Hit Worst By Meltdown + Spectre Fix.

Meltdown + Spectre Reading Suggestions

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Intel Bug Bounty Program : How You Can Earn $250,000 Hunting Bugs!

The Intel Bug Bounty Program was launched in March 2017, but after Meltdown and Spectre, Intel kicked it up a notch. Find out how you can earn up to $250,000 hunting bugs!

The New Intel Bug Bounty Program

The Intel Bug Bounty Program was created to incentivise security researchers to hunt for bugs in Intel’s products. However, it was an invitation-only program, which greatly limited the pool of eligible bug hunters.

On 14 February 2018, Rick Echevarria, the Vice President and General Manager of Platform Security at Intel, announced the expansion of the Intel Bug Bounty Program. Here are the changes :

The Intel Bug Bounty Program is no longer invitation-only. Anyone who meets the minimum requirements are eligible to participate.
Intel created a new bounty targeted specifically at side channel vulnerability (like Meltdown and Spectre). This bounty ends on 31 December 2018, and pays up to $250,000.
Intel also raised bounty awards across the board, with awards of up to $100,000 for other vulnerabilities.

The New Intel Bug Bounty Awards

Vulnerability Severity	Intel Software	Intel Firmware	Intel Hardware
Critical (9.0 – 10.0)	Up to $10,000	Up to $30,000	Up to $100,000
High (7.0 – 8.9)	Up to $5,000	Up to $15,000	Up to $30,000
Medium (4.0 – 6.9)	Up to $1,500	Up to $3,000	Up to $5,000
Low (0.1 – 3.9)	Up to $500	Up to $1000	Up to $2,000

Intel will award a Bounty for the first report of a vulnerability with sufficient details to enable reproduction by Intel.
Intel will award a Bounty from $500 to $250,000 USD depending on the nature of the vulnerability and quality & content of the report.
The first external report received on an internally known vulnerability will receive a maximum of $1,500 USD Award.
The approved CVSS calculators which may be used for determining the baseline Severity of all reported vulnerabilities shall be either the NVD CVSSv3 calculator or the FIRST CVSSv3 calculator at Intel’s sole discretion.[adrotate group=”2″]
Intel will publicly recognize security researchers on advisories and Bug Bounty collateral, at or after the time of public disclosure of the vulnerability, if & as agreed to by the researcher who reported the vulnerability.
Awards are limited to one (1) Bounty Award per eligible root-cause vulnerability. If that vulnerable component is present in other Intel products, a Bounty Award will be paid only for the first reported product instance. Intel, at its sole discretion, will decide whether the reported vulnerability is the first reported product instance of that root-cause vulnerability.

The Side Channel Vulnerability Bounty Awards

This is a time-limited bounty that ends on 31 December 2018, and is limited to bugs that are :

root-caused to Intel hardware
exploitable via software

Vulnerability Severity	Intel Hardware w/ Side Channel Exploit through Software
Critical (9.0 – 10.0)	Up to $250,000
High (7.0 – 8.9)	Up to $100,000
Medium (4.0 – 6.9)	Up to $20,000
Low (0.1 – 3.9)	Up to $5,000

Next Page > The Program Requirements & Eligible Products

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The New Intel Bug Bounty Program Requirements

To qualify for the new Intel Bug Bounty Program, you must meet ALL of the following requirements.

You are reporting in an individual capacity or, if employed by another company, you have that company’s written approval to submit a report to Intel’s Bug Bounty program.
You are at least 18 years of age, and, if considered a minor in your place of residence, you have your parent’s or legal guardian’s permission prior to reporting.
You are not a resident of a US-embargoed country.
You are not on a US list of sanctioned individuals.
You are not currently nor have been an employee of Intel Corporation, or an Intel subsidiary, within 6 months prior to submitting a report.
You are not currently nor have been under contract to Intel Corporation, or an Intel subsidiary, within 6 months prior to submitting a report.
You are not a family nor household member of any individual who currently or within the past 6 months meets or met the criteria listed in the two bullet points directly above.
You agree to participate in testing mitigation effectiveness and coordinating disclosure / release / publication of your finding with Intel.

The New Intel Bug Report Requirements

For your Intel bug reports to be eligible for bounty award consideration, they must meet the following requirements :

Must be encrypted with the Intel PSIRT public PGP key.
Must pertain to an item explicitly listed below as “Eligible Intel products and technologies”.
Must identify an original and previously unreported & not publicly disclosed vulnerability.
Must have been tested against most recent publicly available version of the affected product or technology.
Must include clear documentation on the vulnerability and instructions on how to reproduce the vulnerability.
Must include your assessed CVSS v3 vector string, score, and rating using one of the approved CVSS v3 calculators referenced below.

The following are vulnerabilities that will not qualify for bounty awards :

Vulnerabilities in pre-release versions (e.g., Beta, Release Candidate).
Vulnerabilities in versions no longer under active support.
Vulnerabilities already known to Intel.
Vulnerabilities present in any component of an Intel product where the root-cause vulnerability in the component has already been identified for another Intel product.
Vulnerabilities considered out of scope as defined below.

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Eligible Intel Products & Technologies

Intel Hardware

Processor (inclusive of micro-code ROM + updates)
Chipset
FPGA
Networking / Communication
Motherboard / System (e.g., Intel Compute Stick, NUC)
Solid State Drives

Intel Firmware

UEFI BIOS (Tiano core components for which Intel is the only named maintainer)
Intel Management Engine
Baseboard Management Controller (BMC)
Motherboard / System (e.g., Intel Compute Stick)
Solid State Drives

Intel Software

Device driver
Application
Tool

Meltdown + Spectre Reading Suggestions

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Confirmed : Intel Penryn CPUs Also Vulnerable To Meltdown + Spectre

Intel has always maintained that Meltdown and Spectre only affected their processors from Nehalem onwards. Every list they released publicly has backed that up. However, we can now confirm that even the Intel Penryn CPUs are also vulnerable to Meltdown and Spectre.

Intel Penryn CPUs Also Vulnerable To Meltdown + Spectre

Every list Intel ever released on Meltdown and Spectre have only listed their CPUs from the Nehalem microarchitecture onwards. Although it was possible that the Intel Penryn microarchitecture was also affected, Intel conspicuously left them out of every list.

On 8 February 2018, Intel released a schedule of microcode updates meant to fix the random and spontaneous reboot problems they had with their Spectre 2 patches. Hidden in that schedule is the acknowledgement that the Intel Penryn microarchitecture was also vulnerable.

Those who have been tracking the Intel microcode updates will note that the Intel Penryn processors were not mentioned in the last update on 24 January 2018.

What Are The Intel Penryn CPUs Vulnerable To Meltdown + Spectre?

Meltdown + Spectre Reading Suggestions

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Intel Penryn Server CPUs Vulnerable To Meltdown + Spectre

Intel Yorkfield (2008-2009)

Intel Xeon X3380
Intel Xeon L3380
Intel Xeon X3370
Intel Xeon X3360
Intel Xeon X3350

Intel Wolfdale (2008-2009)

Intel Xeon E3120
Intel Xeon E3110
Intel Xeon L3110

Intel Dunnington (2008)

Intel Xeon X7460
Intel Xeon E7458
Intel Xeon L7455
Intel Xeon E7450
Intel Xeon L7445
Intel Xeon E7440
Intel Xeon E7430
Intel Xeon E7420

Intel Yorkfield-6M (2008)

Intel Xeon X3330
Intel Xeon X3320

Intel Yorkfield-CL (2008)

Intel Xeon X3363
Intel Xeon X3353
Intel Xeon X3323
Intel Xeon X3113
Intel Xeon L3014

Intel Harpertown (2007-2008)

Intel Xeon X5492
Intel Xeon X5482
Intel Xeon X5472
Intel Xeon E5472
Intel Xeon E5462
Intel Xeon X5470
Intel Xeon X5460
Intel Xeon X5450
Intel Xeon E5450
Intel Xeon E5440
Intel Xeon E5430
Intel Xeon L5430
Intel Xeon E5420
Intel Xeon L5420
Intel Xeon E5410
Intel Xeon L5410
Intel Xeon L5408
Intel Xeon E5405

Intel Wolfdale-DP (2007-2008)

Intel Xeon X5272
Intel Xeon X5270
Intel Xeon X5260
Intel Xeon L5248
Intel Xeon X5240
Intel Xeon L5240
Intel Xeon L5238
Intel Xeon X5220
Intel Xeon L5215
Intel Xeon X5205

Intel Tigerton (2007)

Intel Xeon X7350
Intel Xeon L7345
Intel Xeon E7340
Intel Xeon E7330
Intel Xeon E7320
Intel Xeon E7310
Intel Xeon E7220
Intel Xeon E7210

Intel Kentsfield (2007)

Intel Xeon X3230
Intel Xeon X3220
Intel Xeon X3210

Intel Allendale (2007)

Intel Xeon 3050
Intel Xeon 3040

Intel Clovertown (2006-2007)

Intel Xeon X5365
Intel Xeon X5355
Intel Xeon X5350
Intel Xeon E5350
Intel Xeon E5345
Intel Xeon E5340
Intel Xeon E5335
Intel Xeon L5335
Intel Xeon E5330
Intel Xeon E5320
Intel Xeon L5320
Intel Xeon L5318
Intel Xeon E5310
Intel Xeon L5310

Intel Conroe (2006-2007)

Intel Xeon 3085
Intel Xeon 3075
Intel Xeon 3070
Intel Xeon 3065
Intel Xeon 3060
Intel Xeon 3050
Intel Xeon 3040

Intel Woodcrest (2006)

Intel Xeon 5160
Intel Xeon 5150
Intel Xeon LV 5148
Intel Xeon 5140
Intel Xeon LV 5138
Intel Xeon LV 5133
Intel Xeon 5130
Intel Xeon LV 5128
Intel Xeon 5120
Intel Xeon LV 5113
Intel Xeon 5110

Next Page > Intel Penryn Desktop + Mobile CPUs Vulnerable To Meltdown + Spectre

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Intel Penryn Desktop CPUs Vulnerable To Meltdown + Spectre

Intel Yorkfield-6M (2008-2010)

Intel Core 2 Quad Q9705
Intel Core 2 Quad Q9700
Intel Core 2 Quad Q9505S
Intel Core 2 Quad Q9505
Intel Core 2 Quad Q9500
Intel Core 2 Quad Q9400S
Intel Core 2 Quad Q9400
Intel Core 2 Quad Q9300
Intel Core 2 Quad Q8400S
Intel Core 2 Quad Q8400
Intel Core 2 Quad Q8300
Intel Core 2 Quad Q8200S
Intel Core 2 Quad Q8200

Intel Yorkfield (2008-2009)

Intel Core 2 Quad Q9650
Intel Core 2 Quad Q9550S
Intel Core 2 Quad Q9550
Intel Core 2 Quad Q9450S
Intel Core 2 Quad Q9450

Intel Wolfdale (2008-2009)

Intel Core 2 Duo E8700
Intel Core 2 Duo E8600
Intel Core 2 Duo E8500
Intel Core 2 Duo E8400
Intel Core 2 Duo E8300
Intel Core 2 Duo E8290
Intel Core 2 Duo E8200
Intel Core 2 Duo E8190

Intel Wolfdale-3M (2008-2010)

Intel Core 2 Duo E7600
Intel Core 2 Duo E7500
Intel Core 2 Duo E7400
Intel Core 2 Duo E7300
Intel Core 2 Duo E7200
Intel Pentium E6800
Intel Pentium E6700
Intel Pentium E6600
Intel Pentium E6500K
Intel Pentium E6500
Intel Pentium E6300
Intel Pentium E5800
Intel Pentium E5700
Intel Pentium E5500
Intel Pentium E5400
Intel Pentium E5300
Intel Pentium Dual-Core E5300
Intel Pentium E5200
Intel Pentium Dual-Core E5200
Intel Pentium Dual-Core E2210
Intel Celeron E3500
Intel Celeron E3400
Intel Celeron E3300
Intel Celeron E3200

Intel Allendale (2008-2009)

Intel Celeron E1600
Intel Celeron E1500
Intel Celeron E1400
Intel Celeron E1200

Intel Yorkfield-XE (2007-2008)

Intel Core 2 Extreme QX9775
Intel Core 2 Extreme QX9770
Intel Core 2 Extreme QX9650

Intel Conroe-L (2007-2008)

Intel Celeron 450
Intel Celeron 445
Intel Celeron 430
Intel Celeron 420
Intel Celeron 220

Intel Kentsfield (2007)

Intel Core 2 Quad Q6700
Intel Core 2 Quad Q6600
Intel Core 2 Quad Q6400

Intel Conroe-CL (2007)

Intel Core 2 Duo E6405
Intel Core 2 Duo E6305
Intel Celeron 445

Intel Conroe (2006-2008)

Intel Core 2 Duo E6850
Intel Core 2 Duo E6750
Intel Core 2 Duo E6700
Intel Core 2 Duo E6600
Intel Core 2 Duo E6550
Intel Core 2 Duo E6540
Intel Core 2 Duo E6420
Intel Core 2 Duo E6400
Intel Core 2 Duo E6320
Intel Core 2 Duo E6300
Intel Core 2 Duo E4700
Intel Core 2 Duo E4600
Intel Core 2 Duo E4500
Intel Core 2 Duo E4400
Intel Core 2 Duo E4300
Intel Pentium Dual-Core E2220
Intel Pentium Dual-Core E2200
Intel Pentium Dual-Core E2180
Intel Pentium Dual-Core E2160
Intel Pentium Dual-Core E2140

Intel Kentsfield-XE (2006-2007)

Intel Core 2 Extreme QX6850
Intel Core 2 Extreme QX6800
Intel Core 2 Extreme QX6700

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Intel Penryn Mobile CPUs Vulnerable To Meltdown + Spectre

Intel Penryn-3M (2008-2011)

Intel Core 2 Duo SU9600
Intel Core 2 Duo SP9600
Intel Core 2 Duo SU9400
Intel Core 2 Duo SP9400
Intel Core 2 Duo SU9300
Intel Core 2 Duo SP9300
Intel Core 2 Duo SU7300
Intel Pentium T4500
Intel Pentium T4400
Intel Pentium T4300
Intel Pentium T4200
Intel Pentium SU4100
Intel Pentium SU2700
Intel Celeron T3500
Intel Celeron T3300
Intel Celeron T3100
Intel Celeron T3000
Intel Celeron SU2300
Intel Celeron 925
Intel Celeron 900
Intel Celeron ULV 763
Intel Celeron M ULV 743
Intel Celeron M ULV 723
Intel Celeron M ULV 722

Intel Penryn-L (2008-2009)

Intel Core 2 Solo SU3500
Intel Core 2 Solo SU3300

Intel Penryn (2008-2009)

Intel Penryn QC-XE (2008)

Intel Core 2 Extreme QX9300

Intel Penryn QC (2008)

Intel Core 2 Quad Q9100
Intel Core 2 Quad Q9000

Intel Merom-2M (2007-2008)

Intel Core 2 Duo U7700
Intel Core 2 Duo U7600
Intel Core 2 Duo U7500
Intel Pentium Dual-Core T3400
Intel Pentium Dual-Core T3200
Intel Pentium Dual-Core T2410
Intel Pentium Dual-Core T2390
Intel Pentium Dual-Core T2370
Intel Pentium Dual-Core T2330
Intel Pentium Dual-Core T2310
Intel Celeron T1700
Intel Celeron T1600
Intel Celeron T1500
Intel Celeron T1400
Intel Celeron 585
Intel Celeron 575

Intel Merom-L (2007)

Intel Core 2 Solo ULV U2200
Intel Core 2 Solo ULV U2100
Intel Celeron ULV 573
Intel Celeron M ULV 523

Intel Merom (2007)

Intel Merom-XE (2007)

Intel Core 2 Extreme X7900
Intel Core 2 Extreme X7800

Meltdown + Spectre Reading Suggestions

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Confirmed : AMD K10 And K8 Processors Also Vulnerable To Spectre

It is common knowledge that the latest AMD Ryzen 7, Ryzen 5 and Ryzen 3 are vulnerable to the Spectre exploits, and so are the older AMD processors based on their Bulldozer microarchitecture. But what about the AMD K10 and K8 processors? Today, we can confirm that AMD K10 and K8 processors from as far back as 2003 are vulnerable to Spectre.

AMD K10 And K8 Processors Are Also Vulnerable To Spectre

AMD has been transparent about how AMD processors are vulnerable to both Spectre exploits, and their mitigation strategies. However, they have never revealed which AMD processors are affected by the Spectre exploits.

While it was common knowledge that the latest AMD Ryzen 7, Ryzen 5 and Ryzen 3, as well as the Bulldozer-based APUs are vulnerable to Spectre, no one knew for sure whether the older AMD K10 and K8 processors were also affected. After all, they were based on a different microarchitecture.

That was until they revealed their Spectre mitigation strategies. Hidden in their whitepaper were references to AMD Family 10h (also known as AMD K10), as well as AMD Family 0Fh (also known as AMD K8).

So we now know, for sure, that the AMD K10 and AMD K8 processors are also vulnerable to Spectre.

What Are The Affected AMD K10 & K8 Processors?

The AMD K10 family alone adds 96 AMD server CPUs, 168 AMD desktop CPUs, and 77 AMD mobile CPUs to the list of vulnerable processors.

The AMD K8 family adds a further 128 AMD server CPUs, 137 AMD desktop CPUs, and 57 AMD mobile CPUs to the list.

For your convenience, we included the entire list of vulnerable AMD K10 and AMD K8 processors, split into three lists :

Meltdown + Spectre Reading Suggestions

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Vulnerable AMD K10 And K8 Server CPUs

AMD Magny-Cours (2010)

AMD Opteron 6180 SE
AMD Opteron 6176 SE
AMD Opteron 6176
AMD Opteron 6174
AMD Opteron 6172
AMD Opteron 6168
AMD Opteron 6164 HE
AMD Opteron 6140
AMD Opteron 6136
AMD Opteron 6134
AMD Opteron 6132 HE
AMD Opteron 6128
AMD Opteron 6128 HE
AMD Opteron 61QS
AMD Opteron 61KS
AMD Opteron 6124 HE

AMD Lisbon (2010)

AMD Opteron 4184
AMD Opteron 4180
AMD Opteron 4176 HE
AMD Opteron 4174 HE
AMD Opteron 4171 HE
AMD Opteron 4170 HE
AMD Opteron 41KX HE
AMD Opteron 4164 EE
AMD Opteron 4162 EE
AMD Opteron 41GL EE
AMD Opteron 4133
AMD Opteron 4130
AMD Opteron 4122
AMD Opteron 41QS HE
AMD Opteron 41LE HE

AMD Istanbul (2009)

AMD Opteron 8439 SE
AMD Opteron 8435
AMD Opteron 8431
AMD Opteron 8425 HE
AMD Opteron 8423
AMD Opteron 8419
AMD Opteron 8419 EE
AMD Opteron 2439 SE
AMD Opteron 2435
AMD Opteron 2431
AMD Opteron 2427
AMD Opteron 2425 HE
AMD Opteron 2423 HE
AMD Opteron 2419
AMD Opteron 2419 EE

AMD Suzuka (2009)

AMD Opteron 1389
AMD Opteron 1385
AMD Opteron 1381
AMD Opteron 13QS HE
AMD Opteron 13KS EE

AMD Shanghai (2009)

AMD Budapest (2008)

AMD Opteron 1356
AMD Opteron 1354
AMD Opteron 1352

AMD Barcelona (2007)

AMD Opteron 8360 SE
AMD Opteron 8357 SE
AMD Opteron 8356
AMD Opteron 8354
AMD Opteron 8352
AMD Opteron 8350
AMD Opteron 8350 HE
AMD Opteron 8347
AMD Opteron 8347 HE
AMD Opteron 8346 HE

AMD Santa Rosa (2006)

AMD Santa Ana (2006)

AMD Opteron 1224 SE
AMD Opteron 1222 SE
AMD Opteron 1222
AMD Opteron 1220 SE
AMD Opteron 1220
AMD Opteron 1218
AMD Opteron 1218 HE
AMD Opteron 1216
AMD Opteron 1216 HE
AMD Opteron 1214
AMD Opteron 1214 HE
AMD Opteron 1212
AMD Opteron 1212 HE
AMD Opteron 1210
AMD Opteron 1210 HE
AMD Opteron 1210 EE

AMD Egypt (2005)

AMD Opteron 890
AMD Opteron 885
AMD Opteron 880
AMD Opteron 875
AMD Opteron 875 HE
AMD Opteron 870
AMD Opteron 870 HE
AMD Opteron 865
AMD Opteron 865 HE
AMD Opteron 860 HE

AMD Italy (2005)

AMD Opteron 290
AMD Opteron 285
AMD Opteron 280
AMD Opteron 275
AMD Opteron 275 HE
AMD Opteron 270
AMD Opteron 270 HE
AMD Opteron 265
AMD Opteron 265 HE
AMD Opteron 260 HE

AMD Denmark (2005)

AMD Opteron 190
AMD Opteron 185
AMD Opteron 180
AMD Opteron 175
AMD Opteron 170
AMD Opteron 165

AMD Athens (2004)

AMD Opteron 856
AMD Opteron 854
AMD Opteron 852
AMD Opteron 850
AMD Opteron 850 HE
AMD Opteron 848
AMD Opteron 848 HE
AMD Opteron 846
AMD Opteron 846 HE
AMD Opteron 844
AMD Opteron 842

AMD Troy (2004)

AMD Opteron 256
AMD Opteron 254
AMD Opteron 252
AMD Opteron 250
AMD Opteron 250 HE
AMD Opteron 248
AMD Opteron 248 HE
AMD Opteron 246
AMD Opteron 246 HE
AMD Opteron 244
AMD Opteron 242

AMD Venus (2004)

AMD Opteron 156
AMD Opteron 154
AMD Opteron 152
AMD Opteron 150
AMD Opteron 148
AMD Opteron 148 HE
AMD Opteron 146
AMD Opteron 144
AMD Opteron 142

AMD Sledgehammer (2003)

AMD Opteron 850
AMD Opteron 848
AMD Opteron 846
AMD Opteron 846 HE
AMD Opteron 844
AMD Opteron 842
AMD Opteron 840
AMD Opteron 840 EE
AMD Opteron 250
AMD Opteron 248
AMD Opteron 246
AMD Opteron 246 HE
AMD Opteron 244
AMD Opteron 242
AMD Opteron 240
AMD Opteron 240 EE
AMD Opteron 150
AMD Opteron 148
AMD Opteron 146
AMD Opteron 146 HE
AMD Opteron 144
AMD Opteron 142
AMD Opteron 140
AMD Opteron 140 EE

Next Page > The Vulnerable AMD K10 And K8 Desktop CPUs

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Vulnerable AMD K10 And K8 Desktop CPUs

AMD Llano (2011)

AMD A8-3870K
AMD A8-3850
AMD A8-3820
AMD A8-3800
AMD A6-3670K
AMD A6-3650
AMD A6-3620
AMD A6-3600
AMD A4-3420
AMD A4-3400
AMD A4-3330
AMD E2-3200
AMD Athlon II X4 651K
AMD Athlon II X4 651
AMD Athlon II X4 641
AMD Athlon II X4 638
AMD Athlon II X4 631
AMD Athlon II X2 221
AMD Sempron X2 198

AMD Propus (2011)

AMD Phenom II X4 850
AMD Phenom II X4 840
AMD Athlon II X4 650
AMD Athlon II X4 645
AMD Athlon II X4 640
AMD Athlon II X4 635
AMD Athlon II X4 630
AMD Athlon II X4 620
AMD Athlon II X4 620e
AMD Athlon II X4 615e
AMD Athlon II X4 610e
AMD Athlon II X4 605e
AMD Athlon II X4 600e

AMD Regor (2011)

AMD Phenom II X2 521
AMD Phenom II X2 511
AMD Athlon II X2 B30
AMD Athlon II X2 280
AMD Athlon II X2 B28
AMD Athlon II X2 270
AMD Athlon II X2 270u
AMD Athlon II X2 265
AMD Athlon II X2 260
AMD Athlon II X2 260u
AMD Athlon II X2 B26
AMD Athlon II X2 255
AMD Athlon II X2 250e
AMD Athlon II X2 250
AMD Athlon II X2 250u
AMD Athlon II X2 245e
AMD Athlon II X2 245
AMD Athlon II X2 240e
AMD Athlon II X2 240
AMD Athlon II X2 B24
AMD Athlon II X2 235e
AMD Athlon II X2 220
AMD Athlon II X2 B22
AMD Athlon II X2 215
AMD Athlon II X2 210e
AMD Sempron 190
AMD Sempron 180

AMD Zosma (2010)

AMD Phenom II X4 970 Black Edition
AMD Phenom II X4 960T Black Edition
AMD Phenom II X4 960T
AMD Phenom II X4 840T
AMD Phenom II X4 650T
AMD Athlon II X4 640

AMD Thuban (2010)

AMD Phenom II X6 1100T Black Edition
AMD Phenom II X6 1090T Black Edition
AMD Phenom II X6 1075T Black Edition
AMD Phenom II X6 1075T
AMD Phenom II X6 1065T
AMD Phenom II X6 1055T
AMD Phenom II X6 1045T
AMD Phenom II X6 1035T

AMD Sargas (2009)

AMD Athlon II 170u
AMD Athlon II 160u
AMD Sempron 150
AMD Sempron 145
AMD Sempron 140
AMD Sempron 130

AMD Deneb (2009)

AMD Phenom II 42 TWKR
AMD Phenom II X4 980 Black Edition
AMD Phenom II X4 975 Black Edition
AMD Phenom II X4 970 Black Edition
AMD Phenom II X4 965 Black Edition
AMD Phenom II X4 B99
AMD Phenom II X4 955 Black Edition
AMD Phenom II X4 955
AMD Phenom II X4 B97
AMD Phenom II X4 945
AMD Phenom II X4 940 Black Edition
AMD Phenom II X4 B95
AMD Phenom II X4 925
AMD Phenom II X4 920
AMD Phenom II X4 B93
AMD Phenom II X4 910e
AMD Phenom II X4 910
AMD Phenom II X4 905e
AMD Phenom II X4 900e
AMD Phenom II X4 830
AMD Phenom II X4 820
AMD Phenom II X4 810
AMD Phenom II X4 805

AMD Heka (2009)

AMD Phenom II X3 B77
AMD Phenom II X3 740 Black Edition
AMD Phenom II X3 B75
AMD Phenom II X3 720 Black Edition
AMD Phenom II X3 B73
AMD Phenom II X3 720
AMD Phenom II X3 715 Black Edition
AMD Phenom II X3 710
AMD Phenom II X3 705e
AMD Phenom II X3 700e

AMD Callisto (2009)

AMD Phenom II X2 570 Black Edition
AMD Phenom II X2 B60
AMD Phenom II X2 565 Black Edition
AMD Phenom II X2 B59
AMD Phenom II X2 560 Black Edition
AMD Phenom II X2 555 Black Edition
AMD Phenom II X2 B57
AMD Phenom II X2 550 Black Edition
AMD Phenom II X2 550
AMD Phenom II X2 B55
AMD Phenom II X2 545
AMD Phenom II X2 B53

AMD Rana (2009)

AMD Athlon II X3 460
AMD Athlon II X3 455
AMD Athlon II X3 450
AMD Athlon II X3 445
AMD Athlon II X3 440
AMD Athlon II X3 435
AMD Athlon II X3 425e
AMD Athlon II X3 425
AMD Athlon II X3 420e
AMD Athlon II X3 415e
AMD Athlon II X3 405e
AMD Athlon II X3 400e

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AMD Agena (2008)

AMD Phenom X4 9950 Black Edition
AMD Phenom X4 9850 Black Edition
AMD Phenom X4 9850B
AMD Phenom X4 9850
AMD Phenom X4 9750B
AMD Phenom X4 9750
AMD Phenom X4 9650
AMD Phenom X4 9600B
AMD Phenom X4 9600
AMD Phenom X4 9550
AMD Phenom X4 9500
AMD Phenom X4 9450
AMD Phenom X4 9350
AMD Phenom X4 9150e
AMD Phenom X4 9100e

AMD Toliman (2008)

AMD Phenom X3 8850
AMD Phenom X3 8750 Black Edition
AMD Phenom X3 8750
AMD Phenom X3 8750B
AMD Phenom X3 8650
AMD Phenom X3 8600B
AMD Phenom X3 8600
AMD Phenom X3 8550
AMD Phenom X3 8450e
AMD Phenom X3 8450
AMD Phenom X3 8400
AMD Phenom X3 8250e

AMD Kuma (2008)

AMD Athlon X2 7850 Black Edition
AMD Athlon X2 7750 Black Edition
AMD Athlon X2 7550
AMD Athlon X2 7450
AMD Athlon X2 6500 Black Edition

AMD Brisbane (2007)

AMD Lima (2007)

AMD Athlon 64 3800+
AMD Athlon 64 3500+
AMD Athlon 64 3100+
AMD Athlon 64 2850e
AMD Athlon 64 2600+
AMD Athlon 64 2650e
AMD Athlon 64 2000+
AMD Athlon LE-1660
AMD Athlon LE-1640
AMD Athlon LE-1640B

AMD Sparta (2006)

AMD Sempron LE-1300
AMD Sempron LE-1250
AMD Sempron LE-1200
AMD Sempron LE-1150
AMD Sempron LE-1100

AMD Windsor (2006)

AMD Athlon 64 FX-74
AMD Athlon 64 FX-72
AMD Athlon 64 FX-70
AMD Athlon 64 FX-62
AMD Athlon 64 X2 6400+ Black Edition
AMD Athlon 64 X2 6000+
AMD Athlon 64 X2 5600+
AMD Athlon 64 X2 5400+
AMD Athlon 64 X2 5200+
AMD Athlon 64 X2 5000+
AMD Athlon 64 X2 4800+
AMD Athlon 64 X2 4600+
AMD Athlon 64 X2 4400+
AMD Athlon 64 X2 4200+
AMD Athlon 64 X2 4000+
AMD Athlon 64 X2 3800+
AMD Athlon 64 X2 3600+

AMD Manila (2006)

AMD Sempron 3800+
AMD Sempron 3600+
AMD Sempron 3500+
AMD Sempron 3400+
AMD Sempron 3200+
AMD Sempron 3000+
AMD Sempron 2800+

AMD Orleans (2006)

AMD Athlon 64 4000+
AMD Athlon 64 3800+
AMD Athlon 64 3500+
AMD Athlon 64 3200+
AMD Athlon 64 3000+
AMD Athlon 64 LE-1640
AMD Athlon 64 LE-1620
AMD Athlon 64 LE-1600

AMD Toledo (2005)

AMD Athlon 64 FX-60
AMD Athlon 64 X2 4800+
AMD Athlon 64 X2 4600+
AMD Athlon 64 X2 4400+
AMD Athlon 64 X2 4200+
AMD Athlon 64 X2 4000+
AMD Athlon 64 X2 3800+
AMD Athlon 64 X2 3700+

AMD Palermo (2005)

AMD Sempron 3500+
AMD Sempron 3400+
AMD Sempron 3300+
AMD Sempron 3200+
AMD Sempron 3100+
AMD Sempron 3000+
AMD Sempron 2800+
AMD Sempron 2600+
AMD Sempron 2500+

AMD Manchester (2005)

AMD Athlon 64 X2 4600+
AMD Athlon 64 X2 4200+
AMD Athlon 64 X2 3800+
AMD Athlon 64 X2 3600+
AMD Athlon 64 X2 3500+
AMD Athlon 64 X2 3200+

AMD San Diego (2005)

AMD Athlon 64 FX-57
AMD Athlon 64 FX-55
AMD Athlon 64 4000+
AMD Athlon 64 3700+
AMD Athlon 64 3500+

AMD Venice (2005)

AMD Athlon 64 3800+
AMD Athlon 64 3500+
AMD Athlon 64 3400+
AMD Athlon 64 3200+
AMD Athlon 64 3000+
AMD Athlon 64 1500+

AMD Winchester (2004)

AMD Athlon 64 3500+
AMD Athlon 64 3200+
AMD Athlon 64 3000+

AMD Paris (2004)

AMD Sempron 3100+
AMD Sempron 3000+

AMD Clawhammer (2004)

AMD Athlon 64 FX-55
AMD Athlon 64 FX-53
AMD Athlon 64 4000+
AMD Athlon 64 3800+
AMD Athlon 64 3700+
AMD Athlon 64 3600+
AMD Athlon 64 3500+
AMD Athlon 64 3400+
AMD Athlon 64 3200+
AMD Athlon 64 3000+
AMD Athlon 64 2800+

AMD Newcastle (2003)

AMD Athlon 64 3800+
AMD Athlon 64 3500+
AMD Athlon 64 3400+
AMD Athlon 64 3300+
AMD Athlon 64 3200+
AMD Athlon 64 3000+
AMD Athlon 64 2800+

AMD Sledgehammer (2003)

AMD Athlon 64 FX-53
AMD Athlon 64 FX-51

Next Page > The Vulnerable AMD K10 and K8 Mobile CPUs

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Vulnerable AMD K10 And K8 Mobile CPUs

AMD Llano (2011)

AMD A8-3550MX
AMD A8-3530MX
AMD A8-3520M
AMD A8-3510MX
AMD A8-3500M
AMD A6-3430MX
AMD A6-3420M
AMD A6-3410MX
AMD A6-3400M
AMD A4-3330MX
AMD A4-3320M
AMD A4-3310MX
AMD A4-3305M
AMD A4-3300M
AMD E2-3000M

AMD Champlain (2010)

AMD Geneva (2010)

AMD Turion II Neo N54L
AMD Turion II K685
AMD Turion II K665
AMD Turion II K645
AMD Turion II K625

AMD Caspian (2009)

AMD Turion II Ultra M660
AMD Turion II Ultra M640
AMD Turion II Ultra M620
AMD Turion II Ultra M600
AMD Turion II M560
AMD Turion II M540
AMD Turion II M520
AMD Turion II M500
AMD Athlon II M360
AMD Athlon II M340
AMD Athlon II M320
AMD Athlon II M300
AMD Sempron M140
AMD Sempron M120
AMD Sempron M100

AMD Conesus (2009)

AMD Athlon Neo X2 L510
AMD Athlon Neo X2 L335
AMD Athlon Neo X2 L325

AMD Sherman (2009)

AMD Athlon Neo TF-20

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AMD Huron (2009)

AMD Athlon Neo MV-40
AMD Sempron 210U
AMD Sempron 200U

AMD Sable (2008)

AMD Sempron SI-42
AMD Sempron SI-40

AMD Sherman (2007)

AMD Mobile Sempron 4000+
AMD Mobile Sempron 3800+
AMD Mobile Sempron 3700+
AMD Mobile Sempron 3600+
AMD Sempron 2100+ fanless

AMD Keene (2006)

AMD Mobile Sempron 3600+
AMD Mobile Sempron 3500+
AMD Mobile Sempron 3400+
AMD Mobile Sempron 3200+

AMD Newark (2005)

AMD Mobile Athlon 64 4000+
AMD Mobile Athlon 64 3700+
AMD Mobile Athlon 64 3400+
AMD Mobile Athlon 64 3200+
AMD Mobile Athlon 64 3000+

AMD Albany (2005)

AMD Mobile Sempron 3600+
AMD Mobile Sempron 3400+
AMD Mobile Sempron 3300+
AMD Mobile Sempron 3100+
AMD Mobile Sempron 3000+

AMD Roma (2005)

AMD Mobile Sempron 3400+
AMD Mobile Sempron 3300+
AMD Mobile Sempron 3100+
AMD Mobile Sempron 3000+
AMD Mobile Sempron 2800+

AMD Oakville (2004)

AMD Mobile Athlon 64 3000+
AMD Mobile Athlon 64 2800+
AMD Mobile Athlon 64 2700+

AMD Georgetown (2004)

AMD Mobile Sempron 3300+
AMD Mobile Sempron 3100+
AMD Mobile Sempron 3000+
AMD Mobile Sempron 2800+
AMD Mobile Sempron 2600+

AMD Sonora (2004)

AMD Mobile Sempron 3100+
AMD Mobile Sempron 3000+
AMD Mobile Sempron 2800+
AMD Mobile Sempron 2600+

AMD Dublin (2004)

AMD Mobile Sempron 3000+
AMD Mobile Sempron 2800+
AMD Mobile Sempron 2600+

AMD Odessa (2004)

AMD Mobile Athlon 64 3000+
AMD Mobile Athlon 64 2800+
AMD Mobile Athlon 64 2700+

AMD Clawhammer (2004)

AMD Mobile Athlon 64 3700+
AMD Mobile Athlon 64 3400+
AMD Mobile Athlon 64 3200+
AMD Mobile Athlon 64 3000+
AMD Mobile Athlon 64 2800+
AMD Mobile Athlon 64 2700+

Meltdown + Spectre Reading Suggestions

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The Apple Spectre + Meltdown Patches Detailed!

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Within a week after the Meltdown and Spectre exploits revealed, the first Apple Spectre patches were introduced. And Apple has finally released their next slew of patches that will help protect Apple computers against Meltdown and Spectre.

There has been some confusion about what was “fixed” in which patch. In this article, we will share with you exactly mitigations were introduced in which OS X update. As usual, we will update this article, as and when new Apple Spectre or Meltdown patches are released.

The Apple Spectre + Meltdown Patches

macOS High Sierra 10.13.2 Supplemental Update

Date Of Introduction : 8 January 2018
Operating System Patched : macOS 10.13 High Sierra
GPZ Variant Addressed : Spectre 1 and 2 (CVE-2017-5753 and CVE-2017-5715)

The first known update was the macOS High Sierra 10.13.2 Supplemental Update. It introduced a number of mitigations against the two Spectre variants (CVE-2017-5753 and CVE-2017-5715). Specifically, several security improvements were made to Safari and WebKit.

After updating, Safari will be upgraded to version 11.0.2 (13604.4.7.1.6) or version 11.0.2 (13604.4.7.10.6).

Security Update 2018-001 Sierra

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Date Of Introduction : 23 January 2018
Operating System Patched : macOS 10.12 Sierra
GPZ Variant Addressed : Meltdown (CVE-2017-5754)

This security update patched all versions of macOS Sierra against the Meltdown exploit (CVE-2017-5754).

Security Update 2018-001 El Capitan

Date Of Introduction : 23 January 2018
Operating System Patched : OS X 10.11 El Capitan
GPZ Variant Addressed : Meltdown (CVE-2017-5754)

This security update patched all versions of OS X El Capitan against the Meltdown exploit (CVE-2017-5754).

Outstanding Apple Spectre + Meltdown Patches

From what we understand, these are the likely Apple Spectre and Meltdown patches that are still outstanding, and will eventually be released :

A Meltdown patch for macOS High Sierra
Spectre mitigation patches for macOS Sierra and OS X El Capitan
EFI firmware updates for various Mac computers

We will update this article, as and when new Apple Spectre or Meltdown patches are released.

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These Windows 10 Updates Are Bricking AMD PCs! Rev. 4.0

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Microsoft has stopped pushing a number of Windows 10 updates, including the Meltdown and Spectre mitigation patches, because they were bricking some AMD PCs. Frustrated users were left with their AMD PCs in an unbootable state after installing those updates. The cure was, in this case, worse than the disease!

Updated @ 2018-01-16 : Added another affected CPU, a new section on Microsoft’s confusing statement, and a new section on what you should do.

Updated @ 2018-01-15 : Added 6 more CPUs affected by these Windows 10 updates, as well as the official word from AMD.

Updated @ 2018-01-11 : Added more AMD CPUs that were reported to have failed to boot up, after applying these Meltdown and Spectre patches.

Originally posted @ 2018-01-10

These Windows 10 Updates Are Bricking AMD PCs!

Following reports of users unable to boot up their AMD PCs after applying Windows 10 updates, Microsoft has identified the following security patches and updates from 3-9 January 2018 as the culprits :

January 3, 2018—KB4056897 (Security-only update)
January 9, 2018—KB4056894 (Monthly Rollup)
January 3, 2018—KB4056888 (OS Build 10586.1356)
January 3, 2018—KB4056892 (OS Build 16299.192)
January 3, 2018—KB4056891 (OS Build 15063.850)
January 3, 2018—KB4056890 (OS Build 14393.2007)
January 3, 2018—KB4056898 (Security-only update)
January 3, 2018—KB4056893 (OS Build 10240.17735)
January 9, 2018—KB4056895 (Monthly Rollup)

In the affected AMD systems, the Windows logo will appear after the PC reboots to complete the upgrade process. However, it won’t complete the boot process.

What AMD CPUs Are Affected? Updated!

Neither Microsoft nor AMD have revealed what AMD CPUs are affected but based on user reports, here is a list of affected AMD CPUs.

There has been at least one case each involving the newer Ryzen 7 and Threadripper processors, but these are outliers. So far, this issue affects mostly older AMD Athlon processors. However, there

Needless to say, the list above is NOT EXHAUSTIVE. We will update the list, as and when, people report them.

On 11 January 2018, AMD stated that the problem affected AMD Opteron, Athlon and Turion X2 Ultra processors.

How Did This Happen?

Microsoft is blaming documentation from AMD, stating that “some AMD chipsets do not conform to the documentation previously provided to Microsoft to develop the Windows operating system mitigations to protect against the chipset vulnerabilities known as Spectre and Meltdown.“

Technically, Meltdown and Spectre are CPU, not chipset, vulnerabilities. So Microsoft was probably referring to CPU documentation provided by AMD.

What Is Being Done?

Because Windows 10 forcibly installs updates, Microsoft has temporarily stopped pushing those Windows 10 updates to the affected AMD processors. They’re now working with AMD to correct the problem with those patches.

According to AMD, the new patches will be issued sometime in the week of 15-21 January 2018. At the time of this update (16 January 2018), the new patches have not been released.

Microsoft’s Confusing Statement New!

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Microsoft invited some confusion when they stated on 11 January 2018 that “Microsoft has resumed updating the majority of AMD devices with the Windows operating system security update to help protect against the chipset vulnerabilities known as Spectre and Meltdown.”

As far as we can tell – they only resumed Windows 10 updates for the AMD CPUs that are NOT affected by this problem. They merely identified the affected subset of AMD CPUs, and only blocked updates to them – “A small subset of older AMD processors remain blocked to avoid users getting into an unbootable state after installation of recent Windows operating system security updates.”

Should You Install Windows 10 Updates? New!

As Microsoft claims to have accurately determined which subset of AMD CPUs are affected, it is theoretically safe to continue installing Windows 10 updates. Windows 10 should be able to identify your CPU and block the updates if it’s one of the affected models.

That said, there is still NO RISK of a Meltdown or Spectre attack. For all of the hype and panic, there are no know exploits of the speculative execution bug in the wild. The Meltdown and Spectre exploits also require physical access to the system.

So we still think it is better to be safe than sorry and HOLD OFF your Windows 10 updates, if you have an OLDER AMD CPU, until Microsoft releases the proper patches in the next few days.

Meltdown + Spectre Reading Suggestions

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AMD CPUs Are Also Vulnerable To Spectre 2 Exploit Rev. 2.0

AMD updated their security advisory, confirming that their CPUs are also vulnerable to the Spectre 2 exploit. We updated our article Everything On The Intel, AMD & ARM CPU Bug, but it looks like many AMD fanboys still insist that AMD processors are only affected by Spectre 1. So let us burst their bubble and update them on what AMD actually said about this “issue”.

Updated @ 2018-01-15 : Added two new sections addressing the criticisms of the AMD and Intel fanboys.

Originally posted @ 2018-01-13

AMD CPUs Are Also Vulnerable To Spectre 2 Exploit

When AMD first released their security advisory on the Meltdown and Spectre exploits, they stated that, “Differences in AMD architecture mean there is a near zero risk of exploitation of this variant.”

Just over a week later, on 11 January 2018, Mark Papermaster, AMD Senior Vice President and Chief Technology Officer, posted an update of their assessment, stating that “GPZ Variant 2 (Branch Target Injection or Spectre) is applicable to AMD processors.”

He clarified that while AMD believes that their “processor architectures make it difficult to exploit Variant 2“, they have defined “a combination of processor microcode updates and OS patches” to mitigate the Spectre 2 threat.

You can read more about the Spectre and Meltdown exploits in Everything On The Intel, AMD & ARM CPU Bug.

Why Is Spectre 2 Important?

This development is significant, because Spectre 2 is the more problematic exploit of the two. Mainly because any efforts to reduce its risks significantly reduces performance.

According to Microsoft, only Spectre 2 mitigation patches have a significant performance impact. Their initial performance tests show that Spectre 1 and Meltdown mitigation patches have minimal or small performance impact, and are unlikely to be noticed by users.

What Is AMD Doing About Spectre 2?

AMD has already defined the “additional steps” that consists of processor microcode updates and operating system patches that will mitigate the threat of Spectre 2 to their affected processors.

They will make the microcode updates available for the Ryzen and EPYC processors this week, with microcode updates for older processors in the coming weeks.

Notably, Mark said that they would be OPTIONAL. This ties in with their assessment that it would be difficult (albeit not impossible) to exploit Variant 2 in an AMD processor. So AMD users will get the option of NOT applying these microcode updates, at least while no actual Spectre threat exists in the real world.

Linux vendors have started to roll out Spectre 2 patches, while Microsoft will be releasing Spectre 2 patches for Windows shortly.

AMD Fanboys Are Missing The Big Picture

Many AMD fanboys say that we are biased against AMD, because that the risk of a Spectre 2 exploit is small or “virtually non-existent”.

We love the AMD Ryzen just like you do, and find their performance-value proposition incredibly refreshing. In fact, we even wrote an article crediting The Ryzen Effect for creating better Intel processors.

What we reported is no different from the official statement by Mark Papermaster – the AMD CPUs are vulnerable to Spectre 2. But you are all missing the big picture.

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The point here isn’t to rub our collective noses in some kind of childish Intel vs. AMD fanboy war, it’s to point out that these Spectre 2 patches will have a significant performance impact.

Because there is no real world exploit of both Meltdown and Spectre, and because AMD’s microarchitecture is more robust against the Spectre 2 vulnerability, there is arguably no real need to apply the Spectre 2 patches.

That’s why we specifically pointed out that “Mark said that they would be OPTIONAL“, so you should have the option of “NOT applying these microcode updates“.

You guys would have realised that if you actually read the article, instead of just stopping at the title.

Intel Fanboys Should Stop Throwing Stones

Some Intel fanboys are using this article as evidence that “AMD got caught lying” or “AMD CPUs are just as bad”. Well, let us address those claims.

AMD did not lie – In their original disclosure, they stated very clearly that “there is a near zero risk” of a Spectre 2 exploit working on an AMD CPU. We specifically mentioned and underlined that in the original article to stress that AMD was already aware that their CPUs are somewhat vulnerable to Spectre 2.
AMD CPUs are far less at risk – Even with this upgraded risk assessment, AMD CPUs are still much less vulnerable to Spectre 2 than Intel CPUs, and they are completely impervious to the Meltdown exploit. Because they are less vulnerable, AMD users have the option of not applying Spectre 2 patches that can have a significant performance impact.

Meltdown + Spectre Reading Suggestions

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Pre-2016 Intel CPUs Hit Worst By Meltdown + Spectre Fix

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Microsoft just revealed that pre-2016 Intel CPUs will be hit worst by the Meltdown and Spectre patches. They also pointed out that the performance impact detailed in benchmarks published so far did not include both operating system and silicon updates, and are therefore, inaccurate.

Microsoft is still working on their own set of benchmarks that will look at the performance impact after both operating system and silicon updates have been applied. In the meantime, Terry Myerson, Executive Vice President of the Windows and Devices Group, shared some preliminary findings.

Performance Impact Of The Meltdown + Spectre Patches

According to Terry, the patches for Variant 1 (Spectre 1) and Variant 3 (Meltdown) of the speculative execution bug have minimal performance impact.

It is the Variant 2 (Spectre 2) patches, both operating system and silicon microcode, that have a significant performance impact.

Here is a summary of what Microsoft has found so far :

Windows 10 With 2016 Or Newer Intel CPUs

Intel CPU Models : Intel Skylake, Intel Kaby Lake, Intel Coffee Lake

Performance Impact : Single digit reduction in performance. Microsoft does not expect most users to notice the impact, because the percentages are “reflected in milliseconds“.

Windows 10 With Pre-2016 Intel CPUs

Intel CPU Models : Intel Broadwell, Intel Haswell, Intel Ivy Bridge, Intel Sandy Bridge, or older.

Performance Impact : Significant slowdowns in some benchmarks. Microsoft expects some users to notice the decrease in performance.

Windows 8 and Windows 7 With Pre-2016 Intel CPUs

Intel CPU Models : Intel Broadwell, Intel Haswell, Intel Ivy Bridge, Intel Sandy Bridge, or older.

Performance Impact : Significant slowdowns. Microsoft expects most users to notice the decrease in performance.

Windows Server On Any Intel CPU

Performance Impact : Significant slowdowns in any IO-intensive application.

Why The Difference In Performance Impact?

In the newer Intel processors (from the 2016 Skylake onwards), Intel refined the instructions used to disable branch speculation to be more specific to indirect branches. This reduces the performance impact of Spectre mitigation patches.

There is a larger performance impact with Windows 8 and Windows 7 because they have more user-kernel transitions. For example, all font rendering takes place in the kernel.

What Should You Do?

If you are using a newer Intel CPU like the Core i7-8700K with Windows 10, you can rest easy knowing that the performance impact of the Meltdown and Spectre patches to be minimal.

If you are using a newer Intel CPU with an older operating system like Windows 8 or Windows 7, you should consider upgrading to Windows 10. This would reduce the performance impact of the Meltdown and Spectre patches.

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If you are using a pre-2016 Intel CPU with Windows 10, there is nothing much you can do except consider upgrading to a newer processor. You could possibly live with the performance impact of the Meltdown and Spectre patches.

If you are using a pre-2016 Intel CPU with an older operating system like Windows 8 or Windows 7, you can try upgrading to Windows 10 to reduce the performance impact of the Meltdown and Spectre patches.

If you are managing a Windows Server that uses Intel CPUs, you will need to balance the risk of leaving each Windows Server instance unprotected, against the significant performance impact of protecting it against Meltdown and Spectre.

Meltdown + Spectre Reading Suggestions

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