CVE-2026-80586: mptcp: options: reset DSS fields in case of unexpected size

Overview

Severity

Medium (CVSS 5.3)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-27

Last Updated

2026-10-02

EPSS Score

0.40% (percentile: 32.5%)

Affected Products (2)

Other

• 21892-17084
• 21684-17084

Revision History

• 2026-08-27: Information published.
• 2026-09-23: Information published.
• 2026-09-23: Information published.
• 2026-09-24: Information published.
• 2026-10-02: Information published.