SUSE-SU-2026:0669-1: important: Security update for ucode-intel

[SLE-SECURITY-UPDATES]

# Security update for ucode-intel

Announcement ID: SUSE-SU-2026:0669-1  
Release Date: 2026-02-26T15:21:32Z  
Rating: important  
References:

  * bsc#1229129
  * bsc#1258046

  
Cross-References:

  * CVE-2024-24853
  * CVE-2025-31648

  
CVSS scores:

  * CVE-2024-24853 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2024-24853 ( SUSE ):  7.2 CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
  * CVE-2025-31648 ( SUSE ):  1.8
    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/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-2025-31648 ( SUSE ):  3.9 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
  * CVE-2025-31648 ( NVD ):  1.8
    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/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-2025-31648 ( NVD ):  3.9 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

  
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 two vulnerabilities can now be installed.

## Description:

This update for ucode-intel fixes the following issues:

  * Intel CPU Microcode was updated to the 20260210 release (bsc#1258046)
  * CVE-2024-24853: Updated fix for incorrect behavior order in transition
    between executive monitor and SMI transfer monitor (STM) in some Intel(R)
    Processor may allow a privileged user to potentially enable escalation of
    privilege via local access. (bsc#1229129)
  * CVE-2025-31648: Improper handling of values in the microcode flow for some
    Intel Processor Family may allow an escalation of privilege. (bsc#1258046)

## 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 Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-669=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-669=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * ucode-intel-20260210-158.1
    * ucode-intel-debugsource-20260210-158.1
    * ucode-intel-debuginfo-20260210-158.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS (x86_64)
    * ucode-intel-20260210-158.1
    * ucode-intel-debugsource-20260210-158.1
    * ucode-intel-debuginfo-20260210-158.1

## References:

  * https://www.suse.com/security/cve/CVE-2024-24853.html
  * https://www.suse.com/security/cve/CVE-2025-31648.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1229129
  * https://bugzilla.suse.com/show_bug.cgi?id=1258046

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