New Update for Windows 11 Version 24H2 Now Available: Security and Cumulative Reliability Improvements

Microsoft has now made its KB5049622 cumulative update for .NET Framework 3.5 and 4.8.1 available on Windows 11 Version 24H2. This new update will bring security and cumulative reliability improvements for users.

Read more about the update and its changelogs below.

KB5049622 Cumulative Update for .NET Framework 3.5 and 4.8.1 Available on Windows 11 Version 24H2

The KB5049622 cumulative update that has been released on the 14th of January 2025, will be addressing a remote code execution vulnerability that has been detailed in CVE-2025-21176, and will also address the issue on .NET Runtime where in certain rare cases infinite loop can occur when the thread enters CRL for the first time. Moreover, this update is so far ‘safe’, without the presence of any identified issues, as per what has been claimed by the brand.

Interested users can download this update via release channels such as Windows Update and Microsoft Update, Windows Update for Business, Microsoft Update Catalog, and Windows Server Update Services (WSUS). In the first two channels, the update may be downloaded and installed automatically if it is turned on. For the latter two, users can avail it by visiting the Microsoft Update Catalog website or by automatically syncing with WSUS by configuring as ‘Product – Windows 11, version 24H2; Classification: Security Updates’.

To add, in order to apply this update, users should have the .NET Framework 3.5 or 4.8.1 installed on their devices, and to receive a list of files that are included in the update, users may download it from the respective update page. Moreover, after installing, users are also advised to restart the devices and if any affected files are in use, it is recommended to exit them all.