Windows Shell Elevation of Privilege Vulnerability
CVE-2026-97013
Summary
Untrusted pointer dereference in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
Products covered
Windows 11 Version 26H1 for ARM64-based Systems
Windows 11 version 26H1 for x64-based Systems
Remediation
Install KB5132059.
Vendor-listed fixes
10.0.28000.3501
CVEs in this advisory 1
Updates
- Published by Microsoft Security Response Center
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.