CVE-2026-31631: Linux Kernel

High severity, CVSS 8.2. EPSS: 0.6% chance of exploitation in the next 30 days.

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.

Affected products

• Linux Linux Kernel: from 6.16.1, before 6.18.23 (fixed in 6.18.23); from 6.19, before 6.19.13 (fixed in 6.19.13); version 6.16 only; version 7.0 only

Published 2026-04-24. Last modified 2026-06-17.