November 14, 2023—KB5032202 (OS Build 25398.531)

For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows Server, version 23H2, see its update history page.

Improvements

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

• This update supports daylight saving time (DST) changes in Syria. To learn more, see Interim guidance for Syria DST changes 2022.
• This update changes the spelling of Ukraine’s capital from Kiev to Kyiv.
• This update addresses an issue that affects an Application Virtualization (App-V) environment. Copy operations within it stop working. This occurs after you install the April 2023 update.
• This update addresses an issue that blocks external connections. This occurs when you set up a Kubernetes load balanced service and turn on session affinity.
• 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 Windows LAPS. Its PasswordExpirationProtectionEnabled policy fails to turn on the setting.
• This update addresses an issue that affects a COM+ component. It might stop responding. This occurs because of a deadlock during COM+ Just-in-Time (JIT) activation. However, this part of this update is off by default for this version of Windows. If you have this issue, you must contact Microsoft support to turn it on.
  For more information about security vulnerabilities, please refer to the Security Update Guide and the November 2023 Security Updates.

Windows Server, version 23H2 servicing stack update - 25398.521

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

Known issues in this update

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

How to get this update

If you want to remove the LCUTo remove the LCU after installing the combined SSU and LCU package, use the DISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command:DISM /online /get-packages.Running Windows Update Standalone Installer (wusa.exe) with the**/uninstall **switch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.

File InformationFor a list of the files that are provided in this update, download the file information for cumulative update 5032202.For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 25398.521.