MEDIUM 5.7 Microsoft
CVE-2026-80842
net: bridge: mcast: fix use-after-free of a master VLAN's multicast context
Microsoft Security Update 2026-Sep: net: bridge: mcast: fix use-after-free of a master VLAN's multicast context
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
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80842
- https://nvd.nist.gov/vuln/detail/CVE-2026-80842
This medium severity vulnerability with a CVSS score of 5.7 was published on 2026-09-08 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.
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