September 12, 2023-KB5031217 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2
Applies To
.NETRelease Date:
September 12, 2023Version:
.NET Framework 3.5 and 4.8.1Summary
This article describes the security and Cumulative Update for 3.5 and 4.8.1 for Windows 11, version 22H2.
Security Improvements
CVE-2023-36796 - .NET Framework Remote Code Execution Vulnerability CVE 2023-36796.
This security update addresses a vulnerability in DiaSymReader.dll when reading a corrupted PDB file which can lead to Remote Code Execution. For more information seeCVE-2023-36792 - .NET Framework Remote Code Execution Vulnerability CVE-2023-36792.
This security update addresses a vulnerability in DiaSymReader.dll when reading a corrupted PDB file which can lead to Remote Code Execution. For more information seeCVE-2023-36793 - .NET Framework Remote Code Execution Vulnerability CVE-2023-36793.
This security update addresses a vulnerability in DiaSymReader.dll when reading a corrupted PDB file which can lead to Remote Code Execution. For more information seeCVE-2023-36794 - .NET Framework Remote Code Execution Vulnerability CVE-2023-36794.
This security update addresses a vulnerability in DiaSymReader.dll when reading a corrupted PDB file which can lead to Remote Code Execution. For more information seeCVE-2023-36788 - .NET Framework Remote Code Execution Vulnerability CVE 2023-36788.
This security update addresses a vulnerability in the WPF XAML parser where an unsandboxed parser can lead to remote code execution. For more information seeQuality 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.
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5029921 Description of the Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 (KB5029921)
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 11, version 22H2 Classification: Security Updates |
How to obtain help and support for this update
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Help for installing updates: Windows Update FAQ
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Protect yourself online and at home: Windows Security support
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Local support according to your country: International Support