CVE-2025-21765
HIGH severity · CVSS 8.1
8.1CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/28de355b63ad42309ed5a03ee7c436c90512265b ↗
Additional information
- NVD record
- 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