Incorrect authorization in Microsoft Windows - CVE-2026-62775
Published: August 12, 2026
Vulnerability identifier: #VU141910
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-62775
CWE-ID: CWE-863
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to incorrect authorization in Windows Container Isolation FS Filter Driver (unionfs.sys) when handling local file system access. A local user can access file path information to disclose sensitive information.
The disclosed information includes unauthorized access to file system path information.
Affected software
Microsoft Windows
How to mitigate CVE-2026-62775
Install security update from vendor's website.
Microsoft Windows - update to 11 26H1 10.0.28000.2704