Windows Kernel Elevation of Privilege Vulnerability
CVE-2026-96913
Summary
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Phone Service allows an authorized attacker to elevate privileges locally.
Products covered
Windows 11 Version 26H2 for ARM64-based Systems
Windows 11 Version 26H2 for x64-based Systems
Windows Server 2022
Windows Server 2022 (Server Core installation)
Windows 11 Version 25H2 for ARM64-based Systems
Windows 11 Version 25H2 for x64-based Systems
Windows 11 Version 23H2 for ARM64-based Systems
Windows 11 Version 23H2 for x64-based Systems
Show 4 more products
Windows 11 Version 24H2 for ARM64-based Systems
Windows 11 Version 24H2 for x64-based Systems
Windows 11 version 26H1 for x64-based Systems
Windows 11 Version 26H1 for ARM64-based Systems
Remediation
Install KB5127648. Install KB5126655. Install KB5126653. Install KB5127646.
Vendor-listed fixes
10.0.26300.9711
10.0.20348.5761
10.0.26200.9711
10.0.22631.7652
10.0.26100.9711
10.0.28000.3231
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.