CVE-2026-31417 HIGH

CVE-2026-31417: net/x25: Fix overflow when accumulating packets

Vendor Linux
Product Linux
Published April 13, 2026
Last update May 11, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix overflow when accumulating packets Add a check to ensure that `x25_sock.fraglen` does not overflow. The `fraglen` also needs to be resetted when purging `fragment_queue` in `x25_clear_queues()`.

Key dates

02Disclosure timeline

April 13, 2026 CVE published
May 11, 2026 Record updated