Intel expects the following products are potentially affected by the speculative behavior of the SWAPGS and segment registers. For full details, refer to Speculative Behavior of SWAPGS and Segment Registers.
| Family/Model | Step | Processor Families / Processor Number Series | Segment Register Write | SWAPGS Missed (Spectre V1 Variant) |
SWAPGS Extra (Spectre V1 Variant) |
|---|---|---|---|---|---|
| 06_2EH | All | Intel® Xeon® processor 7500, 6500 series (Nehalem-EX) | Yes | Yes | Yes |
| 06_1EH 06_1FH |
All | Intel® Core™ i7 and i5 Processors (Nehalem, Nehalem-G) | Yes | Yes | Yes |
| 06_1AH | All | Intel® Core™ i7 Processor, Intel Xeon processor 3400, 3500, 5500 series (Nehalem-EP) | Yes | Yes | Yes |
| 06_2FH | All | Intel® Xeon® Processor E7 Family (Westmere-EX) | Yes | Yes | Yes |
| 06_25H 06_2CH |
All | Intel® Xeon® processors 3600, 5600 series, Intel® Core™ i7, i5 and i3 Processors (Westmere, Westmere-EP) | Yes | Yes | Yes |
| 06_2DH | All | Intel® Xeon® processor E5 Family based on Intel microarchitecture code name Sandy Bridge, Intel® Core™ i7-39xx Processor Extreme Edition | Yes | Yes | Yes |
| 06_2AH | All | Intel® Xeon® processor E3-1200 product family; 2nd Generation Intel® Core™ i7, i5, i3 Processors 2xxx Series (Sandy Bridge) | Yes | Yes | Yes |
| 06_3EH | All | Intel® Xeon® processor E7-8800/4800/2800 v2 product families based on Ivy Bridge-E microarchitecture | Yes | Yes | Yes |
| 06_3EH | All | Intel® Xeon® processor E5-2600/1600 v2 product families and Intel® Xeon® processor E5-2400 v2 product family based on Ivy Bridge-E microarchitecture, Intel® Core™ i7-49xx Processor Extreme Edition | Yes | Yes | Yes |
| 06_3AH | All | 3rd Generation Intel® Core™ Processor and Intel® Xeon® processor E3-1200 v2 product family based on Ivy Bridge microarchitecture | Yes | Yes | Yes |
| 06_3FH | All | Intel® Xeon® processor E5-4600/2600/1600 v3 product families, Intel® Xeon® processor E7 v3 product families based on Haswell-E microarchitecture, Intel® Core™ i7-59xx Processor Extreme Edition | Yes | Yes | Yes |
| 06_3CH 06_45H 06_46H |
All | 4th Generation Intel® Core™ processor and Intel® Xeon® processor E3-1200 v3 product family based on Haswell microarchitecture | Yes | Yes | Yes |
| 06_56H | All | Intel® Xeon® processor D-1500 product family based on Broadwell microarchitecture | Yes | Yes | Yes |
| 06_4FH | All | Intel® Xeon® processor E5 v4 Family based on Broadwell microarchitecture, Intel® Xeon® processor E7 v4 Family, Intel® Core™ i7-69xx Processor Extreme Edition | Yes | Yes | Yes |
| 06_47H | All | 5th generation Intel® Core™ processors, Intel® Xeon® processor E3-1200 v4 product family based on Broadwell microarchitecture | Yes | Yes | Yes |
| 06_3DH | All | Intel® Core™ M-5xxx Processor, 5th generation Intel® Core™ processors based on Broadwell microarchitecture | Yes | Yes | Yes |
| 06_55H | <=4 | Intel® Xeon® Processor Scalable Family based on Skylake microarchitecture | Yes | Yes | Yes |
| 06_4EH 06_5EH |
All | 6th generation Intel® Core™ processors and Intel® Xeon® processor E3-1500m v5 product family and E3- 1200 v5 product family based on Skylake microarchitecture | Yes | Yes | Yes |
| 06_8EH | <=A | 7th/8th generation Intel® Core™ processors based on Kaby/Coffee Lake microarchitecture | Yes | Yes | Yes |
| 06_9EH | <=B | 7th/8th generation Intel® Core™ processors based on Kaby/Coffee Lake microarchitecture | Yes | Yes | Yes |
| 06_9E | 0xC | 8th generation Intel® Core™ processors based on Coffee Lake microarchitecture | Yes | Yes | Yes |
| 06_8E | 0xB | Whiskey Lake(ULT) | Yes | Yes | Yes |
| 06_8E | 0xC | Whiskey Lake (ULT refresh) | Yes | Yes | Yes |
| 06_9E | 0xD | Whiskey Lake (Desktop | Yes | Yes | Yes |
| 06_55H | 5 | 2nd Generation Intel® Xeon® Scalable Processors based on Cascade Lake microarchitecture | Yes | Yes | Yes |
| 06_55H | 6, 7 | 2nd Generation Intel® Xeon® Scalable Processors based on Cascade Lake microarchitecture | Yes | Yes | Yes |
| 06_37H 06_4AH, 06_4CH 06_4DH 06_5AH 06_5DH 06_6EH 06_65H 06_75H 06_1CH 06_26H 06_27H 06_35H 06_36H 06_36H 06_7AH |
All | Intel Atom® processors based on the Bonnell, Saltwell, Silvermont, Airmont, Goldmont, and GoldmontPlus microarchitectures | No | Yes | No |
| 06_57H 06_85H |
All | Intel® Xeon Phi™ processors based on the Knights Mill, Knights Landing, and Knights Corner microarchitectures | No | Yes | No |
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