CVE-2026-31631

EUVD-2026-25524
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.2 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 31%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
6.16.1 ≤
𝑥
< 6.18.23
linuxlinux_kernel
6.19 ≤
𝑥
< 6.19.13
linuxlinux_kernel
6.16
linuxlinux_kernel
7.0:rc1
linuxlinux_kernel
7.0:rc2
linuxlinux_kernel
7.0:rc3
linuxlinux_kernel
7.0:rc4
linuxlinux_kernel
7.0:rc5
linuxlinux_kernel
7.0:rc6
linuxlinux_kernel
7.0:rc7
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.176-1
fixed
bookworm (security)
6.1.177-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.259-1
fixed
forky
7.1.3-1
fixed
sid
7.1.4-1
fixed
trixie
6.12.94-1
fixed
trixie (security)
6.12.96-1
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://git.kernel.org/stable/c/1c4422d8be81718ecb15d79aedff607323085201
https://git.kernel.org/stable/c/794586789800b16dcbe235452494f4223ac80413
https://git.kernel.org/stable/c/f564af387c8c28238f8ebc13314c589d7ba8475d