January 14, 2025—KB5049984 (OS Build 25398.1369)
Applies To
Windows Server, version 23H2Release Date:
1/14/2025
Version:
OS Build 25398.1369
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. Below is a summary of the key issues that this update addresses when you install this KB. If there are new features, it lists them as well. The bold text within the brackets indicates the item or area of the change we are documenting.
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[Virtual machine (VM)] Fixed: A Windows guest machine fails to start up. This occurs when you turn on nested virtualization on a host that supports AVX10.
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[Windows Kernel Vulnerable Driver Blocklist file (DriverSiPolicy.p7b)] This update adds to the list of drivers that are at risk for Bring Your Own Vulnerable Driver (BYOVD) attacks.
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[Win32_NetworkAdapter and Win32_NetworkAdapterConfiguration] Fixed: You cannot retrieve LAN over USB details on a certain platform. This occurs when you install two drivers on a device, and one of them has a different class ID. If you still have this issue after you install this update, run the commands below with admin rights.
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pnputil /remove-device <instance ID>
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pnputil /scan-device
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For more information about security vulnerabilities, please refer to the Security Update Guide and the January 2025 Security Updates.
Windows Server, version 23H2 servicing stack update (KB5050107) - 25398.1360
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. To learn more about SSUs, see Simplifying on-premises deployment of servicing stack updates.
Known issues in this update
|
Symptom |
Workaround |
|---|---|
|
Following the installation of the October 2024 security update, some customers report that the OpenSSH (Open Secure Shell) service fails to start, preventing SSH connections. The service fails with no detailed logging, and manual intervention is required to run the sshd.exe process. This issue is affecting both enterprise, IOT, and education customers, with a limited number of devices impacted. Microsoft is investigating whether consumer customers using Home or Pro editions of Windows are affected. |
This issue is addressed in KB5053599. |
How to get this update
Before you install 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
To install this update, use one of the following Windows and Microsoft release channels.
|
Available |
Next Step |
|
Yes |
None. This update will be downloaded and installed automatically from Windows Update and Microsoft Update. |
|
Available |
Next Step |
|
Yes |
None. This update will be downloaded and installed automatically from Windows Update for Business in accordance with configured policies. |
|
Available |
Next Step |
|
Yes |
To get the standalone package for this update, go to the Microsoft Update Catalog website. |
|
Available |
Next Step |
|
Yes |
This update will automatically sync with Windows Server Update Services (WSUS) if you configure Products and Classifications as follows: Product: Microsoft Server operating system-21H2 Classification: Security Updates |
If you want to remove the LCU
To 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 Information
For a list of the files that are provided in this update, download the file information for cumulative update 5049984.
For a list of the files that are provided in the servicing stack update, download the file information for the SSU (KB5050107) - version 25398.1360.
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