MicrosoftKB5029648August 8, 2023-KB5029648 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2
August 8, 2023-KB5029648 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2
Revised on August 13th, 2023 to add a known issue.
Release Date:
August 8, 2023 Version: ** .NET Framework 3.5, 4.8 and 4.8.1**
Summary
This article describes the security and Cumulative Update for 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2. Security Improvements CVE-2023-36899 - .NET Framework Remote Code Execution Vulnerability
This security update addresses a vulnerability in applications on IIS using their parent application’s Application Pool which can lead to privilege escalation or other security bypasses. For more information see CVE 2023-36899. CVE-2023-36873 - .NET Framework Spoofing Vulnerability
This security update addresses a vulnerability where unauthenticated remote attacker can sign ClickOnce deployments without a valid code signing certificate. For more information see CVE-2023-36873.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 windows KB5029244, applications which were deployed using ClickOnce might begin to prompt for installation even when the ClickOnceapps are already installed and marked as “trusted”. |
|---|---|
| Resolution | To mitigate the issue, see Windows 10, version 21H2 resolved issues. |
Additional information about this update
The following articles contain additional information about this update as it relates to individual product versions.
- 5028951 Description of the Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 and Windows 10 Version 22H2 (KB5028951)
- 5028946 Description of the Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 10 Version 21H2 and Windows 10 Version 22H2 (KB5028946)
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 21H2Classification: Security Updates |
How to obtain help and support for this update
- Help for installing updates: Windows Update FAQ
- Protect yourself online and at home: Windows Security support
- Local support according to your country: International Support
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