CRITICAL 9.9 Microsoft

CVE-2026-44210

Kata Containers have VM Escape via virtiofsd Argument Injection through Default-Enabled Pod Annotations

Microsoft Security Update 2026-Jul: Kata Containers have VM Escape via virtiofsd Argument Injection through Default-Enabled Pod Annotations

Affected Products

azl3 kata-containers-cc 3.15.0.aks0-15 on Azure Linux 3.0
azl3 kata-containers 3.19.1.kata3-6 on Azure Linux 3.0
azl3 kata-containers-cc 3.15.0.aks0-16 on Azure Linux 3.0
azl3 kata-containers-cc 3.15.0.aks0-20 on Azure Linux 3.0

References

Published: 2026-07-14 · Source: Microsoft · Feed updated: 2026-09-18

This critical severity vulnerability with a CVSS score of 9.9 was published on 2026-07-14 via Microsoft. Affected: azl3 kata-containers-cc 3.15.0.aks0-15 on Azure Linux 3.0, azl3 kata-containers 3.19.1.kata3-6 on Azure Linux 3.0, azl3 kata-containers-cc 3.15.0.aks0-16 on Azure Linux 3.0 and 1 more.

Risk Timeline

CVE Disclosed2026-07-14 · 65 days ago

Remediation Resources

Official Advisory

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44210

NVD / MITRE

nvd.nist.gov/vuln/detail/CVE-2026-44210

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CVE-2026-46595	Invoking VerifiedPublicKeyCallback permissions skip enforcement in golang.org/x	CRITICAL	10.0
CVE-2025-68121	Unexpected session resumption in crypto/tls	CRITICAL	10.0
CVE-2026-27211	Cloud Hypervisor: Host File Exfiltration via QCOW Backing File Abuse	CRITICAL	10.0
CVE-2026-7374	Kubevirt: kubevirt virt-handler: privilege escalation and node compromise via sy	CRITICAL	9.9

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