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openSUSE Leap 15.6 Advisory ID 2026-0668-1 ucode-intel Critical Risk

opensuse
Calendar Grey February 26, 2026
Dist Opensuse Esm H88
An important security update for openSUSE resolves critical issues in ucode-intel that could escalate user privileges.
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.

Topics%20covered

Topics Covered

security advisory important OpenSUSE escalation of privilege ucode-intel Intel processor

Patch

## 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 Micro 5.2

zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-668=1

* SUSE Linux Enterprise Micro for Rancher 5.2

zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-668=1

* openSUSE Leap 15.6

zypper in -t patch openSUSE-SLE-15.6-2026-668=1

* SUSE Linux Enterprise Micro for Rancher 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-668=1

* SUSE Linux Enterprise Micro 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-668=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-668=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-668=1

* SUSE Linux Enterprise Micro 5.5

zypper in -t patch SUSE-SLE-Micro-5.5-2026-668=1

* Basesystem Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-668=1

* SUSE Linux Enterprise High...

Read the Full Advisory

Package List

* SUSE Linux Enterprise Micro 5.2 (x86_64)

* ucode-intel-20260210-150200.62.1

* SUSE Linux Enterprise Micro for Rancher 5.2 (x86_64)

* ucode-intel-20260210-150200.62.1

* openSUSE Leap 15.6 (x86_64)

* ucode-intel-20260210-150200.62.1

* SUSE Linux Enterprise Micro for Rancher 5.3 (x86_64)

* ucode-intel-20260210-150200.62.1

* SUSE Linux Enterprise Micro 5.3 (x86_64)

* ucode-intel-20260210-150200.62.1

* SUSE Linux Enterprise Micro for Rancher 5.4 (x86_64)

* ucode-intel-20260210-150200.62.1

* SUSE Linux Enterprise Micro 5.4 (x86_64)

* ucode-intel-20260210-150200.62.1

* SUSE Linux Enterprise Micro 5.5 (x86_64)

* ucode-intel-20260210-150200.62.1

* Basesystem Module 15-SP7 (x86_64)

* ucode-intel-20260210-150200.62.1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (x86_64)

* ucode-intel-20260210-150200.62.1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (x86_64)

* ucode-intel-20260210-150200.62.1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (x86_64)

*...

Read the Full Advisory

References

* bsc#1229129

* bsc#1258046

## 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0668-1
Release Date: 2026-02-26T15:21:26Z
Affected Products: * Basesystem Module 15-SP7 * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Micro 5.2 * SUSE Linux Enterprise Micro 5.3 * SUSE Linux Enterprise Micro 5.4 * SUSE Linux Enterprise Micro 5.5 * SUSE Linux Enterprise Micro for Rancher 5.2 * SUSE Linux Enterprise Micro for Rancher 5.3 * SUSE Linux Enterprise Micro for Rancher 5.4 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP7

Topics%20covered

Topics Covered

security advisory important OpenSUSE escalation of privilege ucode-intel Intel processor

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