CVE-2026-97984: net: ipv6: Fix UDP length overflow with PMTU discover and big MTU

Overview

Severity

Critical (CVSS 9.1)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-28

EPSS Score

0.17% (percentile: 5.4%)

Affected Products (1)

Other

• 21932-17084

Revision History

• 2026-09-28: Information published.