MEDIUM 5.5 Microsoft
CVE-2026-23278
netfilter: nf_tables: always walk all pending catchall elements
Microsoft Security Update 2026-Mar: netfilter: nf_tables: always walk all pending catchall elements
Affected Products
- azl3 kernel 6.6.126.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
- azl3 kernel 6.6.134.1-2 on Azure Linux 3.0
- azl3 kernel 6.6.138.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.143.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.137.1-2 on Azure Linux 3.0
- azl3 kernel 6.6.139.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.141.1-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23278
- https://nvd.nist.gov/vuln/detail/CVE-2026-23278
This medium severity vulnerability with a CVSS score of 5.5 was published on 2026-03-10 via Microsoft. Affected: azl3 kernel 6.6.126.1-1 on Azure Linux 3.0, azl3 kernel 6.6.130.1-3 on Azure Linux 3.0, azl3 kernel 6.6.134.1-2 on Azure Linux 3.0 and 5 more.
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