CVE-2026-80840: ipv6: seg6: clear IPv4 control block on IPIP decapsulation

Overview

Severity

High (CVSS 7.4)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-06

Last Updated

2026-09-07

EPSS Score

0.21% (percentile: 10.5%)

Affected Products (1)

Other

• 21684-17084

Security Updates (1)

• Security Update

Revision History

• 2026-09-06: Information published.
• 2026-09-07: Information published.