Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
CVE-2026-96196
Summary
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Products covered
Microsoft Visual Studio 2026 version 18.9
.NET 10.0 runtime installed on Windows
.NET 8.0 runtime installed on Windows
.NET 9.0 runtime installed on Windows
Microsoft Visual Studio 2022 version 17.14
.NET 11.0 runtime installed on Windows
Remediation
Release Notes Install KB5126106. Install KB5126104. Install KB5126105.
Vendor-listed fixes
18.9.3
10.0.12
8.0.31
9.0.20
17.14.40
11.0 RC1
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.
- Added affected products: .NET 8.0 runtime installed on Windows, .NET 9.0 runtime installed on Windows, .NET 10.0 runtime installed on Windows, .NET 11.0 runtime installed on Windows.
- Removed affected products: .NET 8.0 installed on Windows, .NET 9.0 installed on Windows, .NET 10.0 installed on Windows, .NET 11.0 installed on Windows.
- The vendor changed the advisory's last-updated date.
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.