CVE-2026-50650 .NET Framework Elevation of Privilege Vulnerability

High 7.8 Published Updated

An attacker can exploit improper code generation in .NET Framework to elevate privileges locally on affected systems.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-50650?

CVE-2026-50650 is a high-severity code injection vulnerability in Microsoft .Net, published on 14 Jul 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Improper control of generation of code ('code injection') in .NET Framework allows an unauthorized attacker to elevate privileges locally.

Weakness: CWE-94

Which versions are affected by CVE-2026-50650?

20 open source packages ship an affected version, including Microsoft.WindowsDesktop.App.Runtime.win-arm64, dotnet and dotnet-sdk. It affects 2 products.

PackageAffectedFixed in
Microsoft.WindowsDesktop.App.Runtime.win-arm64 NuGetFrom 10.0.010.0.10
Microsoft.WindowsDesktop.App.Runtime.win-arm64 NuGetFrom 10.0.010.0.10
Microsoft.WindowsDesktop.App.Runtime.win-arm64 NuGetFrom 8.0.08.0.29
Microsoft.WindowsDesktop.App.Runtime.win-arm64 NuGetFrom 8.0.08.0.29
Microsoft.WindowsDesktop.App.Runtime.win-arm64 NuGetFrom 9.0.09.0.18
Microsoft.WindowsDesktop.App.Runtime.win-arm64 NuGetFrom 9.0.09.0.18
14 more packages
dotnet BitnamiFrom 8.0.08.0.29, 9.0.18
dotnet-sdk BitnamiFrom 8.0.08.0.29, 9.0.18
Microsoft.WindowsDesktop.App.Runtime.win-x64 NuGetFrom 10.0.010.0.10
Microsoft.WindowsDesktop.App.Runtime.win-x64 NuGetFrom 10.0.010.0.10
Microsoft.WindowsDesktop.App.Runtime.win-x64 NuGetFrom 8.0.08.0.29
Microsoft.WindowsDesktop.App.Runtime.win-x64 NuGetFrom 8.0.08.0.29
Microsoft.WindowsDesktop.App.Runtime.win-x64 NuGetFrom 9.0.09.0.18
Microsoft.WindowsDesktop.App.Runtime.win-x64 NuGetFrom 9.0.09.0.18
Microsoft.WindowsDesktop.App.Runtime.win-x86 NuGetFrom 10.0.010.0.10
Microsoft.WindowsDesktop.App.Runtime.win-x86 NuGetFrom 10.0.010.0.10
Microsoft.WindowsDesktop.App.Runtime.win-x86 NuGetFrom 8.0.08.0.29
Microsoft.WindowsDesktop.App.Runtime.win-x86 NuGetFrom 8.0.08.0.29
Microsoft.WindowsDesktop.App.Runtime.win-x86 NuGetFrom 9.0.09.0.18
Microsoft.WindowsDesktop.App.Runtime.win-x86 NuGetFrom 9.0.09.0.18

Products include Microsoft .Net, Microsoft .Net Framework.

How do I fix CVE-2026-50650?

Upgrade Microsoft.WindowsDesktop.App.Runtime.win-arm64 to a fixed version for your release line: 10.0.10, 8.0.29 or 9.0.18.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-50650 being exploited?

There is no known exploitation of CVE-2026-50650 in the wild and no public exploit code.

All Microsoft .Net vulnerabilities

Sources

Also known as BIT-dotnet-2026-50650, BIT-dotnet-sdk-2026-50650, GHSA-2969-4q4w-w5h3, MINI-32p5-7x6g-4h3q, MINI-xc4j-j93w-cfp4, UBUNTU-CVE-2026-50650.

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