SUSE-SU-2026:2981-1: moderate: Security update for ucode-intel

[SLE-UPDATES]

# Security update for ucode-intel

Announcement ID: SUSE-SU-2026:2981-1  
Release Date: 2026-07-14T13:13:41Z  
Rating: moderate  
References:

  * bsc#1265189

  
Cross-References:

  * CVE-2025-35979

  
CVSS scores:

  * CVE-2025-35979 ( SUSE ):  6.8
    CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2025-35979 ( SUSE ):  4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2025-35979 ( NVD ):  6.8
    CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

  
Affected Products:

  * SUSE Linux Enterprise High Performance Computing 12 SP5
  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for ucode-intel fixes the following issue:

  * CVE-2025-35979: data leaks fixed in 20260512 release (bsc#1265189).

Changes for ucode-intel:

  * Intel CPU Microcode was updated to the 20260512 release (bsc#1265189).

**New Platforms**

Processor Stepping F-M-S/PI Old Ver New Ver Products  
PTL 404 A1 06-cc-03/90 0000011b Intel Core Ultra Processor (Series 3)  
PTL-H 484/12Xe A0/B0 06-cc-02/90 0000011b Intel Core Ultra Processor (Series 3)  
  
**Updated Platforms**

Processor Stepping F-M-S/PI Old Ver New Ver Products  
ARL-H A1 06-c5-02/82 0000011b 00000121 Core Ultra Processor (Series 2)  
ARL-S/HX (8P) B0 06-c6-02/82 0000011b 00000121 Core Ultra Processor (Series 2)  
EMR-SP A1 06-cf-02/87 210002d3 210002e0 Xeon Scalable Gen5  
GNR-AP/SP Bx/Hx/Lx 06-ad-01/95 01000405 01000423 Xeon 6900/6700/6500 Series
Processors with P-Cores  
GNR-D B0/B1 06-ae-01/97 01000303 01000307 Xeon 6700P-B/6500P-B Series SoC with
P-Cores  
GNR-SP R1S Bx/Hx/Lx 06-ad-01/20 0a000133 0a000142 Xeon 6700/6500-Series
Processors with P-Cores  
LNL B0 06-bd-01/80 00000125 00000126 Core Ultra 200 V Series Processor  
SPR-SP E4/S2 06-8f-07/87 2b000661 2b000670 Xeon Scalable Gen4  
SPR-SP E5/S3 06-8f-08/87 2b000661 2b000670 Xeon Scalable Gen4  
SRF-AP/SP C0 06-af-03/01 03000382 030003a3 Xeon 6900/6700-Series Processors with
E-Cores  
  
## Special Instructions and Notes:

  * Please reboot the system after installing this update.

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Server 12 SP5 LTSS  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-2981=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2981=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * ucode-intel-debugsource-20260512-161.1
    * ucode-intel-debuginfo-20260512-161.1
    * ucode-intel-20260512-161.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (x86_64)
    * ucode-intel-debugsource-20260512-161.1
    * ucode-intel-debuginfo-20260512-161.1
    * ucode-intel-20260512-161.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-35979.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1265189

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