VulnerabilityModified
CVE-2025-21765
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.
MEDIUM 5.5EPSS 0.60%
Does this matter?
Lower severity and a low EPSS score (0.60%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.60% probability · 47th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/28de355b63ad42309ed5a03ee7c436c90512265bPatch
- https://git.kernel.org/stable/c/3c8ffcd248da34fc41e52a46e51505900115fc2aPatch
- https://git.kernel.org/stable/c/4176a68b0db8fc74ac14fcd00ba8231371051dc2Patch
- https://git.kernel.org/stable/c/550ed693f47370502a71b85382e7f9e6417300b8Patch
- https://git.kernel.org/stable/c/713a40c892f40300d63691d9f85b2a23b48fe1e8Patch
- https://git.kernel.org/stable/c/78ad057472d8c76e0602402269222f9f9c698790Patch
- https://git.kernel.org/stable/c/84212387caadb211cd9dadd6fd5563bd37dc1f5ePatch
- https://git.kernel.org/stable/c/d02f30d220ef9511568a48dba8a9004c65f8d904Patch
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.