CVE-2026-98377: vlan: require the MAC header to be present in __vlan_insert_inner_tag()

Overview

Severity

Medium (CVSS 5.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Oct

Released

2026-10-10

EPSS Score

0.16% (percentile: 4.2%)

Affected Products (1)

Other

• 21932-17084

Revision History

• 2026-10-10: Information published.