Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
CVE-2026-96196
Summary
Out-of-bounds write in Windows DNS allows an unauthorized attacker to execute code over an adjacent network.
Products covered
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server 2022
Windows Server 2022 (Server Core installation)
Windows Server 2025 (Server Core installation)
Windows Server 2025
Remediation
Install KB5120238. Install KB5120242. Install KB5120229. Install KB5120233. Install KB5120228.
Vendor-listed fixes
10.0.17763.9121
10.0.20348.5499
10.0.20348.5440
10.0.26100.33296
10.0.26100.33222
CVEs in this advisory 1
Update history
What changed in later vendor updates
SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.
- Removed affected products: Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for....
- Removed fixed versions: 10.0.19044.7663, 10.0.19045.7663, 10.0.22631.7517, 10.0.26100.9106, 10.0.26100.9168.
- The vendor changed its remediation guidance.
- The vendor changed its remediation guidance.
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.
- Updated by Microsoft Security Response Center
The vendor changed the advisory after it was first published.
- Confirmed at the source
Our collector saw this advisory during a later source check.