Microsoft has published KB5033379 (OS Build 10240.20345) for Windows 10

December 12, 2023—KB5033379 (OS Build 10240.20345)

Highlights

• This update addresses security issues for your Windows operating system. 

Improvements 

This security update includes quality improvements. When you install this KB: 

• This update makes miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release.

If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.

For more information about security vulnerabilities, please refer to the new  Security Update Guide website and the  December 2023 Security Updates.

December 12, 2023—KB5033379 (OS Build 10240.20345) - Microsoft Support