August 8, 2023—KB5029250 (OS Build 20348.1906)

Improvements

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

• This update addresses an issue that affects Microsoft Teams. It fails to send you notifications under certain conditions.

• This update addresses an issue that affects the Windows Management Instrumentation (WMI) repository. This causes an installation error. The issue occurs when a device does not shut down properly.

• This update addresses an issue that affects Event Forwarding Subscriptions. When you add an Event Channel to the subscription, it forwards events you do not need.

• This update addresses an issue that affects apps that use DirectX on older Intel graphics drivers. You might receive an error from apphelp.dll.

• This update enhances hinting for some of the letters of the Verdana Pro font family.

• This update addresses an issue that might affect your computer when you are playing a game. Timeout Detection and Recovery (TDR) errors might occur.

• This update addresses an issue that affects the software-defined networking (SDN) firewall In Memory Object Store DB. Its migration fails.

• This update affects text edit controls in XAML. You cannot edit the controls again after they become read only. This occurs when you use the new Microsoft Input Method Editor for Japanese, Chinese, and Korean.

• This update addresses an issue that affects applications that perform certain actions in a callback. The applications might stop working. These actions include closing a Window (WM_CLOSE).

• This update addresses a deadlock in Internet Protocol Security (IPsec). When you configure servers with IPsec rules, they stop responding. This issue affects virtual and physical servers.

• This update addresses an issue that affects Networking-MPSSVC-Svc. The issue causes a system to enter a restart loop. The stop code is 0xEF.

• This update addresses an issue that causes Windows to fail. This occurs when you use BitLocker on a storage medium that has a large sector size.

• This update affects the Windows Kernel Vulnerable Driver Blocklist, DriverSiPolicy.p7b. It adds drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.

• This update addresses an issue that affects Active Directory Federation Services (AD FS). It might take several attempts to sign in to AD FS successfully. This is because the time calculation for the expiration of a single sign on cookie is wrong.

• This update addresses an issue that affects repair storage jobs. The jobs are suspended. This occurs after two physical disks in two different rack-level fault domains (three fault domain in total) lose communication.

• This update addresses an issue that affects AD Domains and Trusts snap-ins. They fail to enumerate domain trusts. The error message is, "The parameter is incorrect."

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 Security Update Guide and the August 2023 Security Updates.

Known issues in this update

Microsoft is not currently aware of any issues with this update.

How to get this update

Before installing this update

Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.

Install this update

File Information

For a list of the files that are provided in this update, download the file information for cumulative update 5029250. 

For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 20348.1900.