LOW 2.5 Microsoft
CVE-2026-80634
netfilter: flowtable: avoid num_encaps underflow on bridge VLAN untag
Microsoft Security Update 2026-Aug: netfilter: flowtable: avoid num_encaps underflow on bridge VLAN untag
Affected Products
- azl3 kernel 6.6.150.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.152.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.157.1-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80634
- https://nvd.nist.gov/vuln/detail/CVE-2026-80634
This low severity vulnerability with a CVSS score of 2.5 was published on 2026-08-11 via Microsoft. Affected: azl3 kernel 6.6.150.1-1 on Azure Linux 3.0, azl3 kernel 6.6.152.1-1 on Azure Linux 3.0, azl3 kernel 6.6.157.1-1 on Azure Linux 3.0.
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