January 14, 2025-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 R2 (KB5050185)

Applies To
.NET

Note

  • Applies to:
  • Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2 Microsoft .NET Framework 4.8

Note

  • IMPORTANT
  • This update is included in the Security and Quality Rollup that's dated January 14, 2025. Parts of this update were previously released in the rollup that's dated October 8, 2024.

Summary

Note

Note Verify that you have installed the required updates listed in the How to get this update section before installing this update.

Security Improvements

CVE-2025-21176 - .NET Framework Remote Code Execution vulnerability
              This security update addresses a remote code execution vulnerability detailed in CVE-2025-21176.

Quality and Reliability Improvements

For a list of improvements that were released with this update, please see the article links in the Additional Information section of this article.

Known issues in this update

Microsoft is not currently aware of any issues in this update.

Additional information about this update

The following articles contain additional information about this update as it relates to individual product versions.

  • 5044012 Description of the Security and Quality Rollup for .NET Framework 3.5 for Windows Server 2012 R2 (KB5044012)
  • 5049610 Description of the Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 R2 (KB5049610)
  • 5049618 Description of the Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 R2 (KB5049618)

How to get this update

Release Channel Available Next Step
Windows Update and Microsoft Update Yes None. This update will be downloaded and installed automatically from Windows Update.
Microsoft Update Catalog Yes To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS) Yes This operating system update will offer, as applicable, and individual .NET Framework product updates will be installed. For more information about individual .NET Framework product updates see additional information about this update section.
This update will automatically sync with WSUS if you configure as follows:
Product: Windows Server 2012 R2
Classification: Security Updates

How to obtain help and support for this update