Microsoft has published KB5033372 (OS Builds 19044.3803 and 19045.3803) for Windows 10 Enterprise and Education 21H2, Windows 10 IoT Enterprise 21H2, Windows 10 Enterprise Multi-Session 21H2, and Windows 10 22H2.

December 12, 2023—KB5033372 (OS Builds 19044.3803 and 19045.3803)

Highlights

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

Improvements 

Note To view the list of addressed issues, click or tap the OS name to expand the collapsible section.

Windows 10, version 22H2

Important: Use EKB  KB5015684 to update to Windows 10, version 22H2.

This security update includes quality improvements. Key changes include: 

• This build includes all the improvements from the supported Windows 10, version 21H2 editions.

• No additional issues are documented for this release. 

Windows 10, version 21H2 editions: Windows 10 Enterprise and Education, Windows 10 IoT Enterprise, and Windows 10 Enterprise multi-session

Important: Use EKB  KB5003791 to update to Windows 10, version 21H2 on supported editions.

This security update includes quality improvements that were a part of update  KB5032278 (released November 30, 2023). 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—KB5033372 (OS Builds 19044.3803 and 19045.3803) - Microsoft Support