# CVE-2024-21409: .NET Elevation of Privilege Vulnerability

Source: https://junglewise.ai/threats/cve-2024-21409-net-elevation-of-privilege-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-04-17  
License: CC BY 4.0 with a link back

CVE-2024-21409 · Severity: low · CVSS 3.1 · Published 2024-04-17

.NET Elevation of Privilege Vulnerability

Technologies: [Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet)](https://junglewise.ai/threats/technologies/microsoft-windowsdesktop-app-runtime-win-arm64), [Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet)](https://junglewise.ai/threats/technologies/microsoft-windowsdesktop-app-runtime-win-x64), [Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet)](https://junglewise.ai/threats/technologies/microsoft-windowsdesktop-app-runtime-win-x86). Vendors: [NuGet](https://junglewise.ai/threats/vendors/nuget).

## Quick answers

**Is CVE-2024-21409 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-21409 being exploited in the wild.

**How severe is CVE-2024-21409?** Low severity, with a CVSS score of 3.1, published 17 April 2024.

**Which products and versions are affected?** Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=6.0.29; Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet) ECOSYSTEM:introduced=0,fixed=6.0.29; Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet) ECOSYSTEM:introduced=7.0.0,fixed=7.0.18.

**Is there a fix for CVE-2024-21409?** Yes. Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet): upgrade to 6.0.29 or later; Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet): upgrade to 6.0.29 or later; Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet): upgrade to 7.0.18 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2024-21409?** Check whether you run Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet), Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet) or Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet): upgrade to 6.0.29 or later

  ```sh
  dotnet add package Microsoft.WindowsDesktop.App.Runtime.win-arm64 --version 6.0.29
  ```

- Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet): upgrade to 6.0.29 or later

  ```sh
  dotnet add package Microsoft.WindowsDesktop.App.Runtime.win-x64 --version 6.0.29
  ```

- Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet): upgrade to 7.0.18 or later

  ```sh
  dotnet add package Microsoft.WindowsDesktop.App.Runtime.win-x86 --version 7.0.18
  ```


## Affected products

- Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet) ECOSYSTEM:introduced=0,fixed=6.0.29
- Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet) ECOSYSTEM:introduced=0,fixed=6.0.29
- Microsoft.WindowsDesktop.App.Runtime.win-x86 (NuGet) ECOSYSTEM:introduced=7.0.0,fixed=7.0.18

## Identifiers

- CVE-2024-21409
- GHSA-6qmx-42h2-j8h6

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- [Microsoft .NET WindowsDesktop.App.Runtime heap buffer overflow in WPF shader parsing](https://junglewise.ai/threats/cve-2026-96224-microsoft-security-advisory-net-and-visual-studio-remote-code)
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