MEDIUM 5.5 Microsoft
CVE-2026-62775
Windows Container Isolation FS Filter Driver (unionfs.sys) Information Disclosure Vulnerability
Microsoft Security Update 2026-Aug: Windows Container Isolation FS Filter Driver (unionfs.sys) Information Disclosure Vulnerability
Affected Products
- Windows 11 version 26H1 for x64-based Systems
- Windows 11 Version 26H1 for ARM64-based Systems
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62775
- https://nvd.nist.gov/vuln/detail/CVE-2026-62775
This medium severity vulnerability with a CVSS score of 5.5 was published on 2026-08-11 via Microsoft. Affected: Windows 11 version 26H1 for x64-based Systems, Windows 11 Version 26H1 for ARM64-based Systems.
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