The April 9, 2024 update for Windows Server 2012 R2 includes cumulative security and reliability improvements in .NET Framework 4.8. We recommend that you apply this update as part of your regular maintenance routines.

Quality and Reliability Improvements . ASP.NET - Addresses an issue with JavaScriptSerializer where after installing the January Security and Quality update there is a performance degradation. CLR 1 - Addresses an issue with thread pool recycled lists become unresponsive on multi-CPU-group computers.

Summary. Security Improvements. CVE-2024-21409 - .NET Framework Remote Code Execution Vulnerability. This security update addresses a remote code execution vulnerability detailed in CVE-2024-21409. .NET Framework Defense in Depth Vulnerability. This security update addresses an issue where version of the OSS zlib library is out of date.

How to get this update. Before installing this update. Prerequisite: To apply this update, you must have .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 installed. You must install the updates listed below and restart your device before installing the latest Rollup.

Summary. Security Improvements. CVE-2024-21409 - .NET Framework Remote Code Execution Vulnerability. This security update addresses a remote code execution vulnerability detailed in CVE-2024-21409. .NET Framework Defense in Depth Vulnerability. This security update addresses an issue where version of the OSS zlib library is out of date.

The April 9, 2024 update for Windows Server 2012 includes cumulative security and reliability improvements in .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2. We recommend that you apply this update as part of your regular maintenance routines. ... Quality and Reliability Improvements .

Summary. Security Improvements. CVE-2024-21409 - .NET Framework Remote Code Execution Vulnerability. This security update addresses a remote code execution vulnerability detailed in CVE-2024-21409. .NET Framework Defense in Depth Vulnerability. This security update addresses an issue where version of the OSS zlib library is out of date.

The April 9, 2024 update for Windows 10, version 1809 and Windows Server 2019 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8. ... Quality and Reliability Improvements ASP.NET - Addresses an issue with JavaScriptSerializer where after installing the January Security and Quality update there is a ...

The April 9, 2024 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequisites and Restart requirement sections.

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates. Known issues in this update