CVE-2026-31631 HIGH

CVE-2026-31631: rxrpc: Fix buffer overread in rxgk_do_verify_authenticator()

Vendor Linux
Product Linux
Published April 24, 2026
Last update May 11, 2026

CVSS base score

8.2/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 24, 2026 CVE published
May 11, 2026 Record updated