The latest security information on Intel® products.
2026.1 IPU, Intel® Processor Firmware Advisory
| Intel ID: | INTEL-SA-01396 |
|---|---|
| Advisory Category: | Hardware |
| Impact of vulnerability: | Escalation of Privilege |
| Severity rating: | LOW |
| Original release: | 02/10/2026 |
| Last revised: | 02/10/2026 |
Summary:
A potential security vulnerability in some Intel® Processors may allow escalation of privilege. Intel is releasing microcode updates to mitigate this potential vulnerability.
Vulnerability Details:
CVEID: CVE-2025-31648
Description: Improper handling of values in the microcode flow for some Intel® Processor Family may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (low), integrity (low) and availability (none) impacts.
CVSS Base Score 4.0: 1.8 Low
CVSS Vector 4.0: CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
CVSS Base Score 3.1: 3.9 Low
CVSS Vector 3.1: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
Affected Products:
| Product Collection | Platform | Vertical Segment | CPU ID | Platform ID |
| 10th Generation Intel® Core™ processor family | Ice Lake | Mobile | 706E5 | 0x80 |
| 11th Generation Intel® Core processor family | Tiger Lake | Mobile | 806C1 | 11 |
| 11th Generation Intel® Core processor family | Tiger Lake | Mobile | 806C1 | 11 |
| Intel® Celeron® 6305RE, Intel® Celeron® 6305E, Intel® Core™ i3-1115GRE Intel® Core™ i3-1115G4E, Intel® Core™ i5-1145GRE, Intel® Core™ i5-1145G7E Intel® Core™ i7-1185GRE, Intel® Core™ i7-1185G7E | Tiger Lake | Embedded | 806C1 | 11 |
| 11th Generation Intel® Core processor family | Tiger Lake | Mobile | 806C1 | 11 |
| 11th Generation Intel® Core processor family | Tiger Lake | Mobile | 806C2 | 11 |
| 11th Generation Intel® Core processor family | Tiger Lake | Mobile | 806C2 | 11 |
| 11th Generation Intel® Core processor family | Tiger Lake | Mobile | 806D1 | 11 |
| Intel® Celeron® 6600HLE, Intel® Celeron® 6600HE, Intel® Core™ i3-11100HE Intel® Core™ i5-11500HE, Intel® Core™ i7-11850HE, Intel® Xeon® W-11155MLE Intel® Xeon® W-11555MLE, Intel® Xeon® W-11865MLE, Intel® Xeon® W-11865MRE Intel® Xeon® W-11555MRE, Intel® Xeon® W-11155MRE |
Tiger Lake | Embedded | 806D1 | 11 |
| 1. 11th Generation Intel® Core™ processor family | Rocket Lake | 1.Desktop | A0671 | 02 |
| Intel® Xeon® E-2300 processor family Intel® Xeon® W-1300 processor family | Tatlow | Server/AMT Server | A0671 | 02 |
| 12th Generation Intel® Core™ processor family Intel® Pentium® Gold processor family Intel® Celeron® processor family | Alder Lake | Mobile, Embedded | 906A4 | 80, 07 |
| 12th Generation Intel® Core™ processor family Intel® Pentium® Gold processor family Intel® Celeron® processor family | Alder Lake | Mobile | 906A3 | 80 |
| 12th Generation Intel® Core™ processor family Intel® Pentium® Gold processor family Intel® Celeron® processor family | Alder Lake | Desktop | 90675 | 07 |
| 12th Generation Intel® Core™ processor family Intel® Pentium® Gold processor family Intel® Celeron® processor family | Alder Lake | Desktop | 90672 | 07 |
13th Generation Intel® Core™ Processor Family 14th Generation Intel® Core™ processor family Intel® Pentium® Gold processor family Intel® Celeron® processor family 13th Generation Intel® Core™ i7 processors Intel Pentium Processor G7400/G7400T Intel® Xeon® E processor family |
Raptor Lake, Catlow |
Mobile, Desktop, Server |
B06A2, B06A3, B06A8, B0671, B06F2, B06F5, B06A8, 90675, B0671 |
0xe0, 0x32, 07 |
| Intel® Core™ Ultra processors (Series 1) | Meteor Lake | Mobile | A06A1 A06A2 A06A3 A06A4 |
0x7 |
| Intel® Core™ Ultra processors (Series 1) | Meteor Lake | Mobile | A06A1 A06A2 A06A4 |
0x05 |
| Intel® Core™ Ultra processors (Series 1) | Meteor Lake | Desktop | A06C0 A06C1 | 0x01 |
| Intel® Core™ Ultra processors (Series 2) | Arrow Lake | Mobile | B0650 | 80 |
| Intel® Core™ Ultra processors (Series 2) | Arrow Lake | Desktop | C0662 | 82 |
| Intel® Core™ Ultra processors (Series 2) | Arrow Lake | Mobile | C0652 | 82 |
| Intel® Core™ Ultra processors (Series 2) | Arrow Lake | Mobile | C0664 | 82 |
| Intel® Core™ Ultra processors (Series 2) | Lunar Lake | Mobile | B06D1 | 0x80 |
| 3rd Generation Intel® Xeon® Scalable processor family | Whitley | Server | 606A6 | 0x87 |
| Intel® Xeon® D processor family | Idaville | Server, Embedded | 606C1 | 10 |
| 4th Generation Intel® Xeon® Scalable processors 4th Generation Intel® Xeon® Platinum processors 4th Generation Intel® Xeon® Gold processors 4th Generation Intel® Xeon® Silver processor 4th Generation Intel® Xeon® Bronze processor Intel® Xeon® CPU Max Series processors 5th Generation Intel® Xeon® Scalable processors | Eagle Stream | Server | 806F7, 806F8 | 87 |
| 4th Generation Intel® Xeon® Scalable processors 4th Generation Intel® Xeon® Platinum processors 4th Generation Intel® Xeon® Gold processors 4th Generation Intel® Xeon® Silver processor 4th Generation Intel® Xeon® Bronze processor Intel® Xeon® CPU Max Series processors | Eagle Stream | Server | 806F8 | 10 |
| 4th Generation Intel® Xeon® Scalable processors 4th Generation Intel® Xeon® Platinum processors 4th Generation Intel® Xeon® Gold processors 4th Generation Intel® Xeon® Silver processor 4th Generation Intel® Xeon® Bronze processor Intel® Xeon® CPU Max Series processors | Eagle Stream | Workstation | 806F7 806F8 | 87 |
| Intel® Xeon® W Processors | Fishhawk Falls Fishhawk Falls Refresh | Server | 806F8 | 87 |
| 5th Generation Intel® Xeon® Scalable processors | Eagle Stream | Server Workstation | C06F2 | 87 |
| Intel® Xeon® 6 processor with P-Cores | Birch Stream | Server | A06D1, A06E1 | 0x95, 0x20 |
| Intel® Xeon® 6700P-B/6500P-B Series SoC with P-Cores | Kaseyville | Server Workstation | A06E1 | 0x4 |
Recommendation:
Intel recommends that users of affected processors update the latest version of firmware provided by the system manufacturer that addresses this issue.
Intel has released microcode updates for the affected processors that are currently supported on the public github repository as listed below.
Related Content:
- Please see details below on access to the microcode: Public Github: https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files
- Microcode loading points: https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/secure-coding/loading-microcode-os.html
Acknowledgements:
Intel would like to thank Sergiu Ghetie, the CEO of Cloud Tank Inc., for reporting this issue.
Intel, and nearly the entire technology industry, follows a disclosure practice called Coordinated Disclosure, under which a cybersecurity vulnerability is generally publicly disclosed only after mitigations are available.
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