Security update for ucode-intel

Announcement ID: SUSE-SU-2026:0670-1
Release Date: 2026-02-26T15:21:41Z
Rating: important
References:
Cross-References:
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 Server 11 SP4
  • SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE

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 11 SP4 LTSS EXTREME CORE
    zypper in -t patch SUSE-SLE-SERVER-11-SP4-LTSS-EXTREME-CORE-2026-670=1
  • SUSE Linux Enterprise Server 11 SP4
    zypper in -t patch SUSE-SLE-SERVER-11-SP4-LTSS-EXTREME-CORE-2026-670=1

Package List:

  • SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE (x86_64)
    • microcode_ctl-1.17-102.83.90.1
  • SUSE Linux Enterprise Server 11 SP4 (x86_64)
    • microcode_ctl-1.17-102.83.90.1

References: