CVE-2026-31631
high
CVSS v3
8.2
CVSS v4 NEW
—
VIR risk
8.2
Description
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix buffer overread in rxgk_do_verify_authenticator() Fix rxgk_do_verify_authenticator() to check the buffer size before checking the nonce.
Predictions
Exploit likelihood
88%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 0 |
| debian | bullseye | fixed | 0 |
| debian | forky | fixed | 6.19.13-1 |
| debian | sid | fixed | 6.19.13-1 |
| debian | trixie | fixed | 0 |
| linux-kernel | affected | 6.18.23 | |
| linux-kernel | 6.16 | affected | |
| linux-kernel | 7.0 | affected | |
References
- https://git.kernel.org/stable/c/1c4422d8be81718ecb15d79aedff607323085201
- https://git.kernel.org/stable/c/794586789800b16dcbe235452494f4223ac80413
- https://git.kernel.org/stable/c/f564af387c8c28238f8ebc13314c589d7ba8475d
- https://www.suse.com/security/cve/CVE-2026-31631.html
- https://security-tracker.debian.org/tracker/CVE-2026-31631
CWEs
CWE-787
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.