HIGH 8.8 Microsoft
CVE-2026-63807
KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level
Microsoft Security Update 2026-Jul: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level
Affected Products
- azl3 kernel 6.6.143.1-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63807
- https://nvd.nist.gov/vuln/detail/CVE-2026-63807
This high severity vulnerability with a CVSS score of 8.8 was published on 2026-07-14 via Microsoft. Affected: azl3 kernel 6.6.143.1-1 on Azure Linux 3.0.
vulnfeed aggregates 9214 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.