CVE-2025-40204 Affecting kernel-livepatch-5_14_21-150400_24_187-default package, versions <1-150400.9.3.3


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.47% (40th percentile)

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  • Snyk IDSNYK-SLES154-KERNELLIVEPATCH5142115040024187DEFAULT-14873603
  • published6 Jan 2026
  • disclosed5 Jan 2026

Introduced: 5 Jan 2026

CVE-2025-40204  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-livepatch-5_14_21-150400_24_187-default to version 1-150400.9.3.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_14_21-150400_24_187-default package and not the kernel-livepatch-5_14_21-150400_24_187-default package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

sctp: Fix MAC comparison to be constant-time

To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

CVSS Base Scores

version 3.1