MEDIUM 5.5 Microsoft
CVE-2026-64036
cgroup/rstat: validate cpu before css_rstat_cpu() access
Microsoft Security Update 2026-Jul: cgroup/rstat: validate cpu before css_rstat_cpu() access
Affected Products
- azl3 kernel 6.6.152.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.144.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.150.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.157.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.159.1-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64036
- https://nvd.nist.gov/vuln/detail/CVE-2026-64036
This medium severity vulnerability with a CVSS score of 5.5 was published on 2026-07-14 via Microsoft. Affected: azl3 kernel 6.6.152.1-1 on Azure Linux 3.0, azl3 kernel 6.6.144.1-1 on Azure Linux 3.0, azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 and 2 more.
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