Cyber Resilience

CVE-2025-21765

Linux Kernel 2.6.26 – 5.4.291

Published
27 February 2025
Modified
30 July 2026
Patch / advisory
View advisory
CVSS Score v3.1 8.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0059 46th percentile
Risk Priority 60 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2025-21765 is a high-severity an unspecified weakness vulnerability in Linux Linux Kernel. Its CVSS base score is 8.1 (High).

Operationally, ranked at the 46th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU protection in ip6_default_advmss() ip6_default_advmss() needs rcu protection to make sure the net structure it reads does not disappear.

CWE(s)
NVD-CWE-noinfo

Related Threats

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Affected Assets

linux
linux kernel
6.14 · 2.6.26 — 5.4.291 · 5.5 — 5.10.235 · 5.11 — 5.15.179

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References