CVE-2025-21766 Affecting kernel-livepatch-5_14_21-150400_24_194-default package, versions <1-150400.9.7.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.53% (43rd percentile)

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  • Snyk IDSNYK-SLES154-KERNELLIVEPATCH5142115040024194DEFAULT-15350779
  • published25 Feb 2026
  • disclosed24 Feb 2026

Introduced: 24 Feb 2026

CVE-2025-21766  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-livepatch-5_14_21-150400_24_194-default to version 1-150400.9.7.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_14_21-150400_24_194-default package and not the kernel-livepatch-5_14_21-150400_24_194-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:

ipv4: use RCU protection in __ip_rt_update_pmtu()

__ip_rt_update_pmtu() must use RCU protection to make sure the net structure it reads does not disappear.

CVSS Base Scores

version 3.1