Affected Processors: Transient Execution Attacks & Related Security Issues by CPU
This table shows the impact of transient execution attacks (formerly speculative execution side channel methods) and select security issues on currently supported Intel products, dating back to Spectre and Meltdown, including recommended mitigation where affected. Select the associated Intel guidance linked in the table header for specific mitigation information. Use the scrollbars to view the full guidance.
| Processor Select this heading to sort in ascending or descending numerical order |
Stepping All unless otherwise noted |
Code Names or Microarchitectures Select this heading to sort in ascending or descending numerical order |
Product Family | Brand Names | Segment | CPUID1 Select this heading to sort in ascending or descending numerical order |
MCU Update2 where applicable |
Bounds Check Bypass (Spectre v1) CVE-2017-5753 INTEL-SA-00088 |
Branch Target Injection (Spectre v2) CVE-2017-5715 INTEL-SA-00088 |
Rogue Data Cache Load (Meltdown) CVE-2017-5754 INTEL-SA-00088 |
Rogue System Register Read (v3a): RDMSR3 CVE-2018-3640 INTEL-SA-00115 |
Speculative Store Bypass (Spectre v4) CVE-2018-3639 INTEL-SA-00115 |
L1 Terminal Fault (L1TF) CVE-2018-3615 CVE-2018-3620 CVE-2018-3646 INTEL-SA-00161 |
Microarchitectural Fill Buffer Data Sampling CVE-2018-12130 INTEL-SA-00233 |
Microarchitectural Store Buffer Data Sampling CVE-2018-12126 INTEL-SA-00233 |
Microarchitectural Load Port Data Sampling CVE-2018-12127 INTEL-SA-00233 |
SWAPGS CVE-2019-1125 |
TSX Asynchronous Abort CVE-2019-11135 INTEL-SA-00270 |
Machine Check Error Avoidance CVE-2018-12207 INTEL-SA-00210 |
Vector Register Sampling CVE-2020-0548 INTEL-SA-00329 |
Vector Register Sampling Active CVE 2020-8696 INTEL-SA-00381 |
L1D Eviction Sampling CVE-2020-0549 INTEL-SA-00329 |
Load Value Injection: Stale Data CVE-2020-0551 INTEL-SA-00334 |
Load Value Injection: Zero Data CVE-2020-0551 INTEL-SA-00334 |
Snoop-assisted L1D Sampling CVE-2020-0550 INTEL-SA-00330 |
Special Register Buffer Data Sampling CVE-2020-0543 INTEL-SA-00320 |
Fast Forward Store Predictor CVE-2020-8698 INTEL-SA-00381 |
Running Average Power Limit (RAPL) CVE-2020-8695 INTEL-SA-00389 |
Atom Processor Domain Bypass CVE-2020-24513 INTEL-SA-00465 |
Influence of Trivial Data Value in Cache Policy CVE-2020-24512 INTEL-SA-00464 |
IBRS Guest/Host CVE-2020-24511 INTEL-SA-00464 |
Floating Point Value Injection (FPVI) CVE-2021-0086 INTEL-SA-00516 |
Speculative Code Store Bypass (SCSB) CVE-2021-0089 INTEL-SA-00516 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Intel Guidance: Bounds Check Bypass Overview | Intel Guidance: Branch Target Injection Overview | Intel Guidance: Rogue Data Cache Load Overview | Intel Guidance: Rogue System Register Read Overview | Intel Guidance: Speculative Store Bypass Overview | Intel Guidance: L1 Terminal Fault Overview | Intel Guidance: Microarchitectural Data Sampling Deep Dive | Intel Guidance: Microarchitectural Data Sampling Deep Dive | Intel Guidance: Microarchitectural Data Sampling Deep Dive | Intel Guidance: SWAPGS Deep Dive | Intel Guidance: TSX Asynchronous Abort Deep Dive | Intel Guidance: Machine Check Error Avoidance Deep Dive | Intel Guidance: Vector Register Sampling Overview | Intel Guidance: Vector Register Sampling Overview | Intel Guidance: L1D Eviction Sampling Overview | Intel Guidance: Load Value Injection Deep Dive | Intel Guidance: Load Value Injection Deep Dive | Intel Guidance: Snoop-assisted L1D Sampling Deep Dive | Intel Guidance: SRBDS Deep Dive | Intel Guidance: Updating Microcode | Intel Guidance: RAPL Overview | Intel Guidance: Updating Microcode | Intel Guidance: Updating Microcode | Intel Guidance: Updating Microcode | Intel Guidance: FPVI Overview | Intel Guidance: SCSB Overview | ||||||||
| 06_2AH | 7 |
(RETIRED: No new MCU updates starting June 2020) |
|
|
|
206A7 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_2DH | 6 | Sandy Bridge Server EN/EP/EP4S (RETIRED: No new MCU updates starting June 2020) |
Intel® Xeon® E processor family | Intel® Xeon® E5-2620, E5-2630, E5-2630L, E5-2640, E5-2650, E5-2650L, E5-2660, E5-2667, E5-2670, E5-2680, E5-2690 processors | Server | 206D6 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_2DH | 7 |
(RETIRED: No new MCU updates starting June 2020) |
|
|
|
206D7 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_37H | 3 | Valley View (Silvermont) |
|
|
1. Mobile 2,3,4,5. Desktop Mobile Embedded |
30673 | Software4 | MCU + Software | Software | Not Affected | Not Affected | Not Affected | Not Affected | MCU + Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_37H | 8 | Valley View |
|
|
1. Desktop Mobile Embedded 2,3. Mobile |
30678 | Software4 | MCU + Software | Software | Not Affected | Not Affected | Not Affected | Not Affected | MCU + Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_37H | 9 | Valley View | Intel® Atom® Processor E3800 Product Family | Intel® Atom® Processor E3845, E3827, E3826, E3825, E3815, E3805 | Embedded | 30679 | Software4 | MCU + Software | Software | Not Affected | Not Affected | Not Affected | Not Affected | MCU + Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_3AH | 9 |
(2,3. RETIRED: No new MCU updates starting June 2020) |
|
|
|
306A9 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation6 | No planned mitigation8 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_3CH | 3 |
|
1,2. 4th Generation Intel® Core™ Processor Family Intel® Pentium® Processor Family Intel® Celeron® Processor Family 3. Intel® Xeon® E processor family |
|
|
306C3 | 2020.1: 0x28 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation6 | MCU + Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 |
| 06_3DH | 4 |
|
5th Generation Intel® Core™ Processor Family |
|
Mobile | 306D4 | 2020.1: 0x2F | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation7 | MCU + Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 |
| 06_3EH | 4 |
(RETIRED: No new MCU updates starting June 2020) |
|
|
|
306E4 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_3EH | 7 | Ivy Bridge EX (RETIRED: No new MCU updates starting June 2020) |
Intel® Xeon® E processor family | Intel® Xeon® v2 E7-2850, E7-2870, E7-2880, E7-2890, E7-4809, E7-4820, E7-4830, E7-4850, E7-4860, E7-4870, E7-4880, E7-4890, E7-8893, E7-8891, E7-8890, E7-8880L, E7-8880, E7-8870, E7-8857, E7-8850 processors | Server | 306E7 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_3FH | 2 |
|
|
|
|
306F2 | 2021.1: 0x46 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 |
| 06_3FH | 4 | Haswell Server EX | Intel® Xeon® E processor family | Intel® Xeon® v3 E7-4809, E7-4820, E7-4830, E7-4850, E7-8860, E7-8867, E7-8870, E7-8880L, E7-8880, E7-8890, E7-8891, E7-8893 processors | Server | 306F4 | 2021.1: 0x19 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 |
| 06_45H | 1 |
|
4th Generation Intel® Core™ Processor Family Intel® Pentium® Processor Family |
|
Mobile | 40651 | 2020.1: 0x26 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation6 | MCU + Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 |
| 06_46H | 1 |
|
4th Generation Intel® Core™ Processor Family |
|
|
40661 | 2020.1: 0x1C | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation6 | MCU + Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 |
| 06_47H |
|
|
|
|
40671 | 2020.1: 0x22 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation7 | MCU + Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_4AH | Tangier (Silvermont) | Intel® Atom® Processors | Intel® Atom® x3 Processor Family | Mobile Embedded |
406A_ | Software4 | MCU + Software | Software | Not Affected | Not Affected | Not Affected | Not Affected | MCU + Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | ||
| 06_4CH | Cherryview (Airmont) | Intel® Atom® Processor X Series | Intel® Atom® Processor x5-Z8300, x5-Z8330, x5-Z8350, x5-Z8500, x5-Z8550, x7-Z8700, x7-Z8750 | Desktop Mobile Embedded |
406C_ | Software4 | MCU + Software | Software | Not Affected | Not Affected | Not Affected | Not Affected | MCU + Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | ||
| 06_4DH | 8 |
|
Intel® Atom® C processor family |
|
Server | 406D8 | Software4 | MCU + Software | Software | Not Affected | Not Affected | Not Affected | Not Affected | MCU + Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_4EH | 3 |
|
6th Generation Intel® Core™ Processor Family |
|
Mobile | 406E3 | 2021.1: 0xEA | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | Software5 | Software5 | Not Affected | MCU + Software | Not Affected | MCU | Not Affected | MCU | Not Affected | Software4 | Software4 |
| 06_4FH |
|
|
|
|
406F1 | 2021.1: 0b00003e | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation7 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_55H | 3 | Skylake Server | Intel® Xeon® Scalable processor family | Intel® Xeon® Platinum P-8124, P-8136 processors | Server | 50653 | 2021.1: 0100015b | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 |
| 06_55H | 4 |
|
|
|
1,2,3. Server 4. Desktop |
50654 | 2021.1: 02006b06 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 |
| 06_55H | 6 | Cascade Lake Server | 2nd Generation Intel® Xeon® Scalable processor family |
|
Server | 50656 | Feb 16, 21: 04003006 | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | Software4 | Software4 |
| 06_55H | 7 |
|
|
|
|
50657 | 2021.1: 5003102 or higher | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | Software4 | Software4 |
| 06_55H | <= B | Cooper Lake | 3rd Generation Intel® Xeon® Scalable processor family | Intel® Xeon® Platinum 8380HL, 8380H, 8376HL, 8376H, 8360HL, 8360H, 8356H, 8354H, 8353H processors Intel® Xeon® Gold 6348H, 6330H, 6328HL, 6328H, 5320H, 5318H processors |
Server | 5065A | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | Hardware | Software | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | Not Affected | Not Affected | Hardware | Not Affected | Not Affected | Not Affected | MCU | Software4 | Software4 | |
| 06_56H | 2 | Broadwell DE V1 | Intel® Xeon® D processor family | Intel® Xeon® D-1520, D-1540 processors | Server | 50662 | 2020.2: 0x1C | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation7 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 |
| 06_56H | 3 | Broadwell DE V2,V3 | Intel® Xeon® D processor family | Intel® Xeon® D-1518, D-1519, D-1521, D-1527, D-1528, D-1529, D-1531, D-1533, D-1537, D-1539, D-1541, D-1548 processors Intel® Pentium® Processor D1507, D1508, D1509, D1517, D1519 |
Server | 50663 | 2021.1: 700001b | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation7 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 |
| 06_56H | 4 | Broadwell DE Y0 | Intel® Xeon® D processor family | Intel® Xeon® D-1557, D-1559, D-1567, D-1571, D-1577, D-1581, D-1587 processors | Server | 50664 | 2021.1: f000019 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation7 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 |
| 06_56H | 5 |
|
Intel® Xeon® D processor family |
|
Server | 50665 | 2021.1: e000012 | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | No planned mitigation7 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 |
| 06_5AH | Anniedale (Airmont) | Intel® Atom® Processors | Intel® Atom® x5 Processor Family | Mobile | 506A_ | Software4 | MCU + Software | Software | Not Affected | Not Affected | Not Affected | Not Affected | MCU + Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | ||
| 06_5CH | 9 |
|
|
|
Desktop Mobile Embedded |
506C9 | 2021.1: 0x44 | Software4 | MCU + Software | Not Affected | Not Affected | MCU + Software | Not Affected | Not Affected | Not Affected | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | Not Affected | Not Affected | Software4 | Software4 |
| 06_5CH | A | Apollo Lake | Intel® Atom® Processor E3900 Series | Intel® Atom® Processor x5-E3940, x5-E3930, x7-E3950 | Desktop Mobile Embedded |
506CA | 2021.1: 0x20 | Software4 | MCU + Software | Not Affected | Not Affected | MCU + Software | Not Affected | Not Affected | Not Affected | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | Not Affected | Not Affected | Software4 | Software4 |
| 06_5DH | SoFIA 3G (Silvermont) | Intel® Atom® Processors | Intel® Atom® x3-C3130 Processor Family | Mobile Embedded |
506D_ | Software4 | MCU + Software | Software | Not Affected | Not Affected | Not Affected | Not Affected | MCU + Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | ||
| 06_5EH | 3 |
|
|
|
|
506E3 | 2021.1: 0xEA | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | Software5 | Software5 | Not Affected | MCU + Software | Not Affected | MCU | Not Affected | MCU | Not Affected | Software4 | Software4 |
| 06_5FH | 1 | Denverton (Goldmont) | Intel® Atom® C processor family | Intel® Atom® C3308, C3336, C3338, C3338R, C3436L, C3508, C3538, C3558, C3558R, C3558RC, C3708, C3750, C3758, C3758R, C3808, C3830, C3850, C3858, C3950, C3958, C3955 processors | Server | 506F1 | 2021.1: 0x34 or higher | Software4 | MCU + Software | Not Affected | Not Affected | MCU + Software | Not Affected | Not Affected | Not Affected | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | Not Affected | Not Affected | Software4 | Software4 |
| 06_65H | XMM7272 (Airmont) | Intel® Atom® Processors | Mobile | 6065_ | Software4 | MCU + Software | Software | Not Affected | Not Affected | Not Affected | Not Affected | MCU + Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |||
| 06_6AH | 4, 5, 6 | Ice Lake Xeon-SP | 3rd Gen Intel® Xeon® Scalable processor family | Intel® Xeon® Platinum 8300 processors Intel® Xeon® Gold 6300 processors Intel® Xeon® Gold 5300 processors Intel® Xeon® Silver 4300 processors |
Server | 606AX | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | Hardware | Hardware | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | Not Affected | Not Affected | Hardware | MCU | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_6EH | Cougar Mountain (Airmont) | Intel® Puma™ 7 Family Intel® Atom® Processors |
Intel® Puma™ 7 Home Gateway | SOC Embedded |
606E_ | Software4 | MCU + Software | Software | Not Affected | Not Affected | Not Affected | Not Affected | MCU + Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | ||
| 06_75H | Butter (Airmont) | Intel® Atom® Processors | Intel® Atom® x5 Processor Family | Mobile | 7065_ | Software4 | MCU + Software | Software | Not Affected | Not Affected | Not Affected | Not Affected | MCU + Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | No planned mitigation6 | No planned mitigation6 | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | ||
| 06_7AH | 1 | Gemini Lake |
|
|
Desktop Mobile Embedded |
706A1 | 2021.1: 0x36 | Software4 | MCU + Software | Software | Not Affected | MCU + Software | Not Affected | Not Affected | Not Affected | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | MCU | Not Affected | Not Affected | Software4 | Software4 |
| 06_7AH | 8 | Gemini Lake |
|
|
|
706A8 | 2021.1: 0x1A | Software4 | MCU + Software | Hardware | Not Affected | Hardware + Software | Not Affected | Not Affected | Not Affected | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | MCU | Not Affected | Not Affected | Software4 | Software4 |
| 06_7EH | 5 | Ice Lake U, Y | 10th Generation Intel® Core™ Processor Family | Intel® Core™ Processor i7-1060G7, i7-1065G7 Intel® Core™ Processor i5-1030G4, i5-1030G7, i5-1035G1, i5-1035G4, i5-1035G7 Intel® Core™ Processor i3-1000G1, i3-1000G4, i3-1005G1 |
Mobile | 706E5 | 2021.1: 0xA6 | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware + MCU | Hardware | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Hardware + MCU | Not Affected | Not Affected | Not Affected | MCU | MCU | Not Affected | MCU | MCU | Software4 | Software4 |
| 06_86H | Snowridge (Tremont) | Intel® Atom® Processors | Intel® Atom® Processor P5942B, P5931B, P5962B, P5921B Note: Jacobsville platform |
Server (Basestation) |
8066_ | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Not Affected | Not Affected | Not Affected | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | Not Affected | Not Affected | Software4 | Software4 | ||
| 06_8AH | 1 | Lakefield B-step (Tremont) | Intel® Core™ Processors with Intel® Hybrid Technology | Intel® Core™ Processor i3-L13G4, i5-L16G7 | Mobile | 806A1 | 2021.1: 0x2A | Software4 | Hardware + Software | Hardware | Hardware | MCU + Software | Not Affected | Not Affected | Not Affected | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | Not Affected | Not Affected | Software4 | Software4 |
| 06_8AH | 1 | Lakefield B-step (Sunny Cove) | Intel® Core™ Processors with Intel® Hybrid Technology | Intel® Core™ Processor i3-L13G4, i5-L16G7 | Mobile | 806A1 | 2021.1: 0x2A | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware + MCU | Hardware | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Hardware + MCU | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | Software4 | Software4 |
| 06_8CH | <=2 | Tiger Lake U-series | 11th Generation Intel® Core™ Processor Family | Intel® Core™ i7-1185G7, i7-1165G7, i7-1185GRE, i7-1185G7E, i7-1180G7, i7-1160G7, i5-1145G7, i5-1145GRE, i5-1145G7E, i5-1140G7, i5-1130G7, i3-1125G4, i3-1115GRE, i3-1115G4E, i3-1120G4, i3-1110G4 Intel® Celeron® 6305 Processor, Intel® Celeron® 6305E Processor |
Mobile Embedded |
806C1 | 2021.1: 0x7E or higher | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | Hardware | Hardware | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | Not Affected | Not Affected | MCU | Not Affected | Software4 | Software4 |
| 06_8DH | 1 | Tiger Lake H-series |
|
|
|
806D1 | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Hardware | MCU | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_8DH | 1 | Tiger Lake H-series |
|
|
Embedded | 806D1 | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Hardware | MCU | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_8CH | 2 |
|
11th Generation Intel® Core™ Processor Family |
|
Mobile | 806C2 | 2021.1: 0x7E or higher | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | Hardware | Hardware | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | Not Affected | Not Affected | MCU | Not Affected | Software4 | Software4 |
| 06_8EH | 9 |
|
1. 8th Generation Intel® Core™ Processor Family 2,3,4. 7th Generation Intel® Core™ Processor Family |
|
Mobile | 806E9 | 2021.1: 0xEA | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | Software5 | Software5 | Not Affected | MCU | Not Affected | MCU | Not Affected | MCU | Not Affected | Software4 | Software4 |
| 06_8EH | A |
|
8th Generation Intel® Core™ Processor Family |
|
Mobile | 806EA | 2021.1: 0xEA | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | Software5 | Software5 | Not Affected | MCU + Software | Not Affected | MCU | Not Affected | MCU | Not Affected | Software4 | Software4 |
| 06_8EH | B | Whiskey Lake U | 8th Generation Intel® Core™ Processors | Intel® Core™ Processor i7-8565U, i7-8665U Intel® Core™ Processor i5-8365U, i5-8265U Intel® Core™ Processor i3-8145U Intel® Core™ Processor 4205U, 5405U |
Mobile | 806EB | 2021.1: 0xEA | Software4 | MCU + Software | Hardware | MCU | MCU + Software | Hardware | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | Software5 | Software5 | Not Affected | MCU + Software | Not Affected | MCU | Not Affected | MCU | Not Affected | Software4 | Software4 |
| 06_8EH | C |
5. Amber Lake Y |
|
|
Mobile | 806EC | 2021.1: 0xEA | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | Software5 | Software5 | Not Affected | MCU + Software | Not Affected | MCU | Not Affected | MCU | MCU | Software4 | Software4 |
| 06_96H | Elkhart Lake (Tremont) | Intel® Atom® Processors | Intel® Pentium® Processor J6425, N6415 Intel® Celeron® Processor J6413, N6211 Intel® Atom® Processor x6413E, x6425RE, x6427FE, x6212RE, x6200FE, x6211E, x6425E |
Embedded | 9066_ | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Not Affected | Not Affected | Not Affected | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | Not Affected | Not Affected | Software4 | Software4 | ||
| 06_9CH | Jasper Lake Plus (Tremont) | Intel® Atom® Processors | Desktop Mobile Embedded |
906C_ | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Not Affected | Not Affected | Not Affected | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | MCU | Not Affected | Not Affected | Software4 | Software4 | |||
| 06_9EH | 9 |
|
|
|
|
906E9 | 2021.1: 0xEA | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | Software5 | Software5 | Not Affected | MCU + Software | Not Affected | MCU | Not Affected | MCU | Not Affected | Software4 | Software4 |
| 06_9EH | A |
|
|
|
1. Mobile 2. Workstation AMT Server Server 3,4. Desktop |
906EA | 2021.1: 0xEA | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | Software5 | Software5 | Not Affected | MCU + Software | Not Affected | MCU | Not Affected | MCU | Not Affected | Software4 | Software4 |
| 06_9EH | B | Coffee Lake S |
|
|
Desktop | 906EB | 2021.1: 0xEA | Software4 | MCU + Software | Software | MCU | MCU + Software | MCU + Software | MCU + Software | MCU + Software | MCU + Software | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | Software5 | Software5 | Not Affected | MCU + Software | Not Affected | MCU | Not Affected | MCU | Not Affected | Software4 | Software4 |
| 06_9EH | C | Coffee Lake S | 9th Generation Intel® Core™ Processor Family | Intel® Core™ Processor i9-9900K, i9-9900KF Intel® Core™ Processor i7-9700K, i7-9700KF Intel® Core™ Processor i5-9600K, i5-9600KF, i5-9400, i5-9400F |
Desktop | 906EC | 2021.1: 0xEA | Software4 | Hardware + Software | Hardware | MCU | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | Software5 | Software5 | Not Affected | MCU + Software | Not Affected | MCU | Not Affected | MCU | Not Affected | Software4 | Software4 |
| 06_9EH | D |
|
|
|
|
906ED | 2021.1: 0xEA | Software4 | Hardware + Software | Hardware | MCU | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | MCU + Software | Software | MCU + Software | MCU + Software | MCU | Software5 | Software5 | Not Affected | MCU + Software | Not Affected | MCU | Not Affected | MCU | MCU | Software4 | Software4 |
| 06_A5H | 2 | Comet Lake-H | 10th Generation Intel® Core™ Processor Family Intel® Xeon® W processor family |
Intel® Core™ Processor i9-10980HK, i9-10885H, i7-10875H, i7-10850H, i7-10870H, i7-10750H, i5-10400H, i5-10300H, i5-10200H Intel® Xeon® W-10885M, W-10855M processors |
Mobile Workstation |
A0652 | 2021.1: 0xEA | Software4 | Hardware + Software | Hardware | MCU | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Software5 | Not Affected | Not Affected | Not Affected | MCU | Not Affected | MCU | MCU | Software4 | Software4 |
| 06_A5H | 3 | Comet Lake-S | 10th Generation Intel® Core™ Processor Family Intel® Pentium® Gold Processor Family Intel® Celeron® Processor Family Intel® Xeon® W processor family |
Intel® Core™ Processor i5-10600, i5-10600T, i5-10505, i5-10500, i5-10500T, i5-10400, i5-10400F, i5-10400T, i3-10320, i3-10300, i3-10300T, i3-10100, i3-10100T, i3-10100F, i3-10325, i3-10305, i3-10305T, i3-10105, i3-10105F, i3-10105T Intel® Pentium® Gold Processor G6600, G6500, G6500T, G6400, G6400T, G6605, G6505, G6505T, G6405, G6405T Intel® Celeron® Processor G5920, G5900, G5900T, G5925, G5905, G5905T Intel® Xeon® W-1250 processors |
Desktop Workstation |
A0653 | 2021.1: 0xEA | Software4 | Hardware + Software | Hardware | MCU | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Software5 | Not Affected | Not Affected | Not Affected | MCU | Not Affected | MCU | MCU | Software4 | Software4 |
| 06_A5H | 5 | Comet Lake-S | 10th Generation Intel® Core™ Processor Family Intel® Xeon® W processor family |
Intel® Core™ Processor i9-10900K, i9-10900KF, i9-10900, i9-10900T, i9-10900F, i9-10850K, i7-10700K, i7-10700KF, i7-10700, i7-10700T, i7-10700F, i5-10600K, i5-10600KF, i5-10400, i5-10400F Intel® Xeon® W-1290P, W-1290, W-1290T, W-1270P, W-1270, W-1250P processors |
Desktop Workstation |
A0655 | 2021.1: 0xEC | Software4 | Hardware + Software | Hardware | MCU | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Software5 | Not Affected | Not Affected | Not Affected | MCU | Not Affected | MCU | MCU | Software4 | Software4 |
| 06_A6H | <=1 | Comet Lake U62 | 10th Generation Intel® Core™ Processor Family Intel® Xeon® W processor family |
Intel® Core™ Processor i5-10500TE, i7-10700E, TE, i7-10710U, i7-10750H, i7-10810U, i7-10875H, i9-10850H, i9-10885H, i9-10980HK, i9-10900E, TE Intel® Xeon® W-10855, W-1290 E, TE processors |
Mobile Desktop |
A0661 | 2021.1: 0xEA | Software4 | Hardware + Software | Hardware | MCU | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affected | Software5 | Not Affected | Not Affected | Not Affected | MCU | Not Affected | MCU | MCU | Software4 | Software4 |
| 06_A7H | 1 | Rocket Lake | 11th Generation Intel® Core™ Processor Family | Intel® Core™ Processor i9-11900K, i9-11900KF, i9-11900, i9-11900T, i9-11900F, i7-11700K, i7-11700KF, i7-11700, i7-11700T, i7-11700F, i5-11600K, i5-11600KF, i5-11600, i5-11600T, i5-11500, i5-11500T, i5-11400, i5-11400F, i5-11400T | Desktop | A0671 | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Hardware | Software | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Not Affected | Software4 | Software4 | |
| 06_97H | 2 | Alder Lake S-series | 12th Generation Intel® Core™ Processor Family | Intel® Core™ Processor i9-12900K, i9-12900KF, i7-12700K, i7-12700KF, i5-12600K, i5-12600KF | Desktop | 90672 | Software4 | Hardware + Software | Hardware | Hardware | Hardware + Software | Hardware | Hardware | Hardware | Hardware | Software | Not Affected | Software | Not Affected | Not Affected | Not Affected | Not Affecte | Not Affecte | Not Affected | Not Affected | Hardware | Not Affected | Not Affected | Not Affected | Software4 | Software4 | Software4 |
Key
Software: Mitigation implemented in software; software updates needed to enable mitigation
Hardware: Mitigation implemented in hardware; no action required to enable mitigation
Hardware + Software: Mitigation implemented in hardware and software updates needed to enable mitigation
MCU: Mitigation implemented in microcode; microcode update available through operating system or BIOS updates
MCU + Software: Mitigation implemented in microcode; software update needed to enable mitigation
Not Affected: Products not affected; no action required
NOTE The latest software can be obtained through operating system or VMM vendors.
Footnotes
1CPUID description: Example CPUID = 906EB. Family = 06 / Extended Model = 9 / Model Number = E / Stepping ID = B. See Intel Software Developer’s Manual Version 071, Volume 2A, Figure 3-6 for reference
2Linux Users: The microcode image is named after the family/model/stepping. You can locate these from /proc/cpuinfo. Example: For Family 06, Model 85, Stepping 4 (values in decimal), the corresponding microcode file is 06-55-04 located in /lib/firmware/intel-ucode/ (values in hexadecimal).
Look at the microcode version number at the official public Intel microcode website. Calculate Family-Model-Stepping before downloading appropriate microcode.
Windows users: Read the version with the following PowerShell command: reg query HKLM\HARDWARE\DESCRIPTION\System\CentralProcessor\0 /v "Update Revision" .
Or use the Intel® Processor Identification Utility tool to check the microcode version and compare against the latest microcode listed above.
For more information on finding microcode versions, visit: https://www.intel.com/content/www/us/en/support/articles/000055672/processors.html.
For more information on Intel processor numbering, visit: https://www.intel.com/content/www/us/en/processors/processor-numbers.html.
3This column describes mitigations for RDMSR at CPL3 and RDMSR in a Virtual Machine Extensions (VMX) guest when the VMM indicates that MSR should cause a VM exit. See the linked Intel Guidance for more details on other aspects of v3a.
4Options may include: process isolation, masking, speculative load hardening or LFENCE insertion, as well as SYSRET or dedicated type, set FTZ, and DAZ. See Intel guidance for more detail.
5Software tools for Intel® Software Guard Extensions (Intel® SGX); only if Intel SGX is supported.
6Intel is not aware of any real-world impact outside Intel® SGX and is only releasing mitigations for Intel SGX software. Software mitigation outside of Intel SGX may be possible. Please see Intel Guidance for additional information.
7See Intel Guidance for more information.
8Intel is not planning mitigations as these products are discontinued or no longer supported.
Download the most current affected processor spreadsheet below.
AFFECTED PROCESSORS: Latest Transient Execution Attacks by Product CPU Model
Product and Performance Information
Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.
Features and benefits in Intel® technologies depend on system configuration and may require enabled hardware, software or service activation. Performance varies depending on system configuration. No product or component can be absolutely secure. Check with your system manufacturer or retailer or learn more at Intel.com.
Software and workloads used in performance tests may have been optimized for performance only on Intel microprocessors.
Performance tests, such as SYSmark and MobileMark, are measured using specific computer systems, components, software, operations and functions. Any change to any of those factors may cause the results to vary. You should consult other information and performance tests to assist you in fully evaluating your contemplated purchases, including the performance of that product when combined with other products. For more complete information visit www.intel.com/benchmarks.
Performance results are based on testing as of dates shown in configurations and may not reflect all publicly available updates.
The products and services described may contain defects or errors known as errata which may cause deviations from published specifications. Current characterized errata are available on request.
Intel provides these materials as-is, with no express or implied warranties.