Microsoft has released KB5004245 for Windows 10 Enterprise version 1909, Windows 10 Enterprise and Education version 1909, and  Windows 10 IoT Enterprise version 1909.

July 13, 2021—KB5004245 (OS Build 18363.1679)

Highlights

• Updates for verifying usernames and passwords.

• Updates to improve security when Windows performs basic operations. 

Improvements and fixes

This security update includes quality improvements. Key changes include:

• Adds Advanced Encryption Standard (AES) encryption protections for  CVE-2021-33757. For more information, see  KB5004605.

• Security updates to Windows Apps, Windows Management, Windows Fundamentals, Windows Authentication, Windows User Account Control (UAC), Operating System Security, Windows Virtualization, Windows Linux, the Windows Kernel, the Microsoft Scripting Engine, the Windows HTML Platforms, the Windows MSHTML Platform, and Windows Graphics.

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

For more information about the resolved security vulnerabilities, please refer to the new  Security Update Guide website. 

July 13, 2021—KB5004245 (OS Build 18363.1679)