CVE-2026-98393: net: ipv4: Fix UDP length overflow with PMTU discover and big MTU

Overview

Severity

Low (CVSS 1.9)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Oct

Released

2026-10-16

EPSS Score

0.21% (percentile: 10.1%)

Affected Products (1)

Other

• 21932-17084

Revision History

• 2026-10-16: Information published.