Windows Kernel Elevation of Privilege Vulnerability
CVE-2026-96913
Summary
Stack-based buffer overflow in Windows Host Guardian Service allows an unauthorized attacker to deny service over a network.
Products covered
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows Server 2016
Windows Server 2016 (Server Core installation)
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for x64-based Systems
Windows Server 2019
Windows Server 2019 (Server Core installation)
Show 4 more products
Windows Server 2022
Windows Server 2022 (Server Core installation)
Windows Server 2025
Windows Server 2025 (Server Core installation)
Remediation
Install KB5126868. Install KB5126651. Install KB5126655. Install KB5126646.
Vendor-listed fixes
10.0.14393.9612
10.0.17763.9376
10.0.20348.5761
10.0.26100.33650
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.