CVE-2026-23407: apparmor: fix missing bounds check on DEFAULT table in verify_dfa()

Overview

Severity

High (CVSS 7.8)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Apr

Released

2026-04-10

Last Updated

2026-04-27

EPSS Score

0.01% (percentile: 0.6%)

Affected Products (2)

Open Source Software

• cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
• azl3 kernel 6.6.0.0-1 on Azure Linux 3.0

Revision History

• 2026-04-10: Information published.
• 2026-04-26: Information published.
• 2026-04-27: Information published.