CVE-2026-31631CWE-125CWE-787

CVE-2026-31631

High · published April 24, 2026

CVSS v3.1
8.2
EPSS
1%
Percentile
45.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00551 · 45.4th percentile
Weaknesses
CWE-125 · Out-of-bounds Read; CWE-787 · Out-of-bounds Write
Published
2026-04-24T19:16Z
Affected products (10)
ProductVersionsFixed in
linux/linux_kernel≥ 6.16.1, < 6.18.236.18.23
linux/linux_kernel≥ 6.19, < 6.19.136.19.13
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
References (3)
https://git.kernel.org/stable/c/1c4422d8be81718ecb15d79aedff607323085201 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/794586789800b16dcbe235452494f4223ac80413 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f564af387c8c28238f8ebc13314c589d7ba8475d · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 24 APR 14:44Z
    rxrpc: Fix buffer overread in rxgk_do_verify_authenticator()
    cvelistv5