HIGH 7.1 Microsoft
CVE-2026-23409
apparmor: fix differential encoding verification
Microsoft Security Update 2026-Apr: apparmor: fix differential encoding verification
Affected Products
- azl3 kernel 6.6.0.0-1 on Azure Linux 3.0
- cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23409
- https://nvd.nist.gov/vuln/detail/CVE-2026-23409
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-04-14 via Microsoft. Affected: azl3 kernel 6.6.0.0-1 on Azure Linux 3.0, cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0.
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