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
Linux kernel Affected 3 releases
| Version | Status | Fixed in |
|---|---|---|
| 7.0 | Affected | — |
| 6.16 | Affected | — |
| — | Affected | 6.18.23 |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0 |
| sid | Fixed | 6.19.13-1 |
| forky | Fixed | 6.19.13-1 |
| bullseye | Fixed | 0 |
| bookworm | Fixed | 0 |
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.