# CVE-2026-92489

Linux kernel xfrm double-free leading to kernel memory corruption (DoS/RCE).

- Page: https://www.vulneraibility.com/cve/CVE-2026-92489
- CVSS: 9.8
- Known exploited: not in CISA KEV as of our last sync
- EPSS: 0.46% (percentile 39.7)
- Published: 2026-09-17

## Affected versions

- Linux: affected >= bfb9b9404a53a72524ce695551755117e9d3deb0 and < 621871b696b108026bf4b44ed4085ffa2102f417; >= a0395e96831adee8ffa016bf958e4dce9ece656e and < bc9297796bfdcc8d9609236e54519a4f38737aac; >= 5eddd76ec2fd1988f0a3450fde9730b10dd22992 and < 02deb637e965950148752a304dd1471212dd6470; >= 5eddd76ec2fd1988f0a3450fde9730b10dd22992 and < 56a347950e661c1a7f8f31c43a2ea53c2323b6f4; >= 5eddd76ec2fd1988f0a3450fde9730b10dd22992 and < 2aed51fc58d9ce450e2c116efb956160fd06fa02; d1d673a5bede3767252cff19c0ab1e5387c6f43f; >= 6.6.85 and < 6.6.157; >= 6.12.21 and < 6.12.110; >= 6.13.9 and < 6.14; 6.14; fixed in < 6.14, >= 6.6.157 and <= 6.6.*, >= 6.12.110 and <= 6.12.*, >= 6.18.52 and <= 6.18.*, >= 7.2.6 and <= 7.2.*, >= 7.3-rc1 and <= *

A version outside these ranges is not a statement that it is unaffected.

## Impact

Crafted network packets can trigger an skb double-free in xfrm, causing kernel memory corruption allowing denial-of-service or potential remote code execution.

## Action

Immediate action required

## Recommendation

Apply vendor/kernel updates immediately and reboot affected hosts.

## References

- [other] https://git.kernel.org/stable/c/621871b696b108026bf4b44ed4085ffa2102f417
- [other] https://git.kernel.org/stable/c/bc9297796bfdcc8d9609236e54519a4f38737aac
- [other] https://git.kernel.org/stable/c/02deb637e965950148752a304dd1471212dd6470
- [other] https://git.kernel.org/stable/c/56a347950e661c1a7f8f31c43a2ea53c2323b6f4
- [other] https://git.kernel.org/stable/c/2aed51fc58d9ce450e2c116efb956160fd06fa02

---
Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.