HID: steam: Clean up locking
CVE-2026-98943
Summary
Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.
Products covered
Windows Server 2025 (Server Core installation)
Windows 11 Version 25H2 for ARM64-based Systems
Windows 11 Version 25H2 for x64-based Systems
Windows 11 Version 24H2 for ARM64-based Systems
Windows 11 Version 24H2 for x64-based Systems
Windows Server 2025
Windows 11 version 26H1 for x64-based Systems
Windows 11 Version 26H1 for ARM64-based Systems
Remediation
Install KB5099536. Install KB5101650. Install KB5101649.
Vendor-listed fixes
10.0.26100.33158
10.0.26200.8875
10.0.26100.8875
10.0.28000.2525
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.
- Confirmed at the source
Our collector saw this advisory during a later source check.