Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
CVE-2026-96196
Summary
Heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges locally.
Products covered
Windows Server 2022
Windows Server 2022 (Server Core installation)
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 23H2 for ARM64-based Systems
Windows 11 Version 23H2 for x64-based Systems
Windows 11 Version 24H2 for ARM64-based Systems
Show 4 more products
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 KB5120242. Install KB5120229. Install KB5120233. Install KB5120228. Install KB5121003. Install KB5120994. Install KB5120240. Install KB5121000.
Vendor-listed fixes
10.0.20348.5499
10.0.20348.5440
10.0.26100.33296
10.0.26100.33222
10.0.26200.9168
10.0.26200.9106
10.0.22631.7517
10.0.26100.9168
Show 2 more fixes
10.0.26100.9106
10.0.28000.2704
CVEs in this advisory 1
Update history
What changed in later vendor updates
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- The vendor changed its remediation guidance.
Updates
- Published by Microsoft Security Response Center
The publication date reported by the vendor.
- Updated by Microsoft Security Response Center
The vendor changed the advisory after it was first published.
- 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.