February 14, 2023-KB5022729 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2

2023-02-1408:00:00

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February 14, 2023-KB5022729 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2

Notes:

Revised 3/29/2023 to add an resolution to a Known issues in this update.
Revised 3/24/2023 to add an additional Known issues in this update.

**Note:**Revised on Jun 20, 2023 to add resolution to known issue.

Release Date:
February 14, 2023 Version: ** .NET Framework 3.5, 4.8 and 4.8.1**

Summary

This article describes the Cumulative Update for 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2. Security Improvements CVE-2023-21808 - .NET Framework Remote Code Execution Vulnerability
This security update addresses a vulnerability in the MSDIA SDK where an untrusted pointer dereference can cause memory corruption, leading to a crash or remove code execution. For more information please see CVE-2023-21808. CVE-2023-21722 - .NET Framework Denial of Service Vulnerability
This security update addresses a vulnerability where the Visual Studio WMI Setup Provider Installer can be used by a low level, local attacker to corrupt local files that SYSTEM can writ to, leading to a potential denial of service. For more information please see CVE-2023-21722.Quality and Reliability ImprovementsFor 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

Symptom	After installing this update, WPF apps may have a change in behavior. For more information about this issue, see KB5022083
Workaround	To mitigate this issue, see KB5022083. Resolution
—	—
Workaround	Applying the following steps will allow KB5022498to be installed:

Uninstall 4.8 February update (KB5022502 )
Run command from elevated Command Promp: dism/online /cleanup-image /StartComponentCleanup
Scan for windows update again, 4.8.1 February update (KB5022498) installs as expected.
Resolution| On March 29, 2023, KB5022498 was re-released to correct this issue.

Additional information about this update

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

5022502 Description of the Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10, version 20H2, Windows 10 Version 21H2 and Windows 10 Version 22H2 (KB5022502)
5022498 Description of the Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 10, version 20H2, Windows 10 Version 21H2 and Windows 10 Version 22H2 (KB5022498)

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.
Windows Update for Business	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 10 Version 22H2Classification: Security Updates