CVE-2026-80844: xfrm: ah6: validate routing header segments_left

Overview

Severity

Medium (CVSS 6)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-06

Last Updated

2026-10-02

EPSS Score

0.43% (percentile: 36.6%)

Detection & Weaponization (1 sources)

Maturity: Exploit

• GitHub PoC: 3 repositories

Affected Products (2)

Other

• 21684-17084
• 21892-17084

Security Updates (1)

• Security Update

Revision History

• 2026-09-06: Information published.
• 2026-09-07: Information published.
• 2026-09-23: Information published.
• 2026-09-23: Information published.
• 2026-09-24: Information published.
• 2026-10-02: Information published.