Patchday: Windows Server-Updates (February 11, 2025)

[German]On February 11, 2025 (second Tuesday of the month, Patchday at Microsoft) various cumulative updates were released for the supported versions of Windows Server. Below I have extracted the provided updates including some details for these Windows Server versions (from Windows Server 2012 to 2025).

Updates for Windows Server 2025

A list of updates for Windows Server 2025 can be found on this Microsoft website. The cumulative update KB5051987 has been released for Windows Server 2025, which raises the OS build to 20348.3194. The update contains security patches and the following fixes:

• [Digital/Analog converter (DAC) (known issue)] Fixed: You might experience issues with USB audio devices. This is more likely when you use a DAC audio driver based on USB 1.0. USB audio devices might stop working, which stops playback.
• [USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update.

This update is automatically downloaded and installed by Windows Update, but is also available in the Microsoft Update Catalog and via WSUS and WUfB. The latest Windows Servicing Stack Update is integrated in the patch. Any problems caused by the update and installation requirements are listed in the support article.

Updates for Windows Server 2022/23H2

The following updates are available for Windows Server 2022 and Windows Server 23H2.

Update KB5051980 for Windows Server 23H2

A list of updates for Windows Server 23H2 can be found on this Microsoft website. The cumulative update KB5051980 has been released for Windows Server 23H2, which raises the OS build to 25398.1425. The update contains security patches and the following fixes.

• [Cluster stability] Fixed: Many servers within the same cluster suddenly shut down. The network is less available, and latency rises.
• [Task Manager] Fixed: The CPU index number might be wrong when you set process affinity. This occurs on servers that have two or more non-uniform memory access (NUMA) nodes.
• [GB18030-2022] This update adds support for this amendment.
• [Memory leak] Fixed: Leaks occur when predictive input ideas show.
• [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.
• [Virtual machine (VM) storage pool] Fixed: Some operations that rely on a storage pool stop working. This occurs because the VM cannot reclaim disk space to do things, like load balancing.​​​​​​​
• [USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update.
• Digital/Analog converter (DAC)] Fixed: You might experience issues with USB audio devices. This is more likely when you use a DAC audio driver based on USB 1.0. USB audio devices might stop working, which stops playback.
• [USB audio device drivers] Fixed: The code 10 error message, "This device cannot start" appears. This occurs when you connect to certain external audio management devices. ​​​​​​​

This update is automatically downloaded and installed by Windows Update, but is also available in the Microsoft Update Catalog and via WSUS and WUfB. The latest Windows Servicing Stack Update is integrated in the patch. Any problems caused by the update and installation requirements are listed in the support article.

Update KB5051979 for Windows Server 2022

A list of updates for Windows Server 2022 can be found on this Microsoft website. The cumulative update KB5051979 has been released for Windows Server 2022, which raises the OS build to 20348.3091. The update contains security patches and the following fixes:

• [Task Manager] Fixed: The CPU index number might be wrong when you set process affinity. This occurs on servers that have two or more non-uniform memory access (NUMA) nodes.
• [GB18030-2022] This update adds support for this amendment.
• [Memory leak] Fixed: Leaks occur when predictive input ideas show.
• [Device Health Attestation] Fixed: When you upgrade from Windows Server 2016, a crucial item is not there. Because of this, service fails.
• [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.
• [Directory enumeration] Fixed: This might fail if a directory has symbolic links that have long target names.
• [Bind Filter Driver] Fixed: Your system might stop responding when it accesses symbolic links.
• [Digital/Analog converter (DAC) (known issue)] Fixed: You might experience issues with USB audio devices. This is more likely when you use a DAC audio driver based on USB 1.0. USB audio devices might stop working, which stops playback.
• [USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update.
• [USB audio device drivers] Fixed: The code 10 error message, "This device cannot start" appears. This occurs when you connect to certain external audio management devices. ​​​​​​​

This update is automatically downloaded and installed by Windows Update, but is also available in the Microsoft Update Catalog and via WSUS and WUfB. The current Windows Servicing Stack Update is integrated in the patch. Any problems caused by the update and installation requirements are listed in the support article.

Updates for Windows Server 2016/2019

A list of updates for Windows Server 2016 and 2019 can be found on this Microsoft website. I have extracted the relevant update information below.

Update KB5052000 for Windows Server 2019

Cumulative Update KB5052000 is not only available for Windows 10 2019 Enterprise LTSC etc., but also for Windows Server 2019. The update includes security fixes and the following bug fixes.

• [USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update.
• [USB audio device drivers] Fixed: The code 10 error message, "This device cannot start" appears. This occurs when you connect to certain external audio management devices.

he update is automatically downloaded and installed by Windows Update, but is also available in the Microsoft Update Catalog, via WSUS and WUfB. Microsoft has also updated the Service Stack Update (SSU). Please note the installation sequence described in the support article and, if applicable, the notes on further requirements and any existing problems.

Update KB5052006 for Windows Server 1607

Cumulative Update KB5052006 is not only available for Windows 10 2016 Enterprise LTSC, but also for Windows Server 2016. The update includes security fixes and the following bug fi

• [USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update.
• [USB audio device drivers] Fixed: The code 10 error message, "This device cannot start" appears. This occurs when you connect to certain external audio management devices.  ​​​​​​​
• [Digital/Analog converter (DAC) (known issue)] Fixed: You might experience issues with USB audio devices. This is more likely when you use a DAC audio driver based on USB 1.0. USB audio devices might stop working, which stops playback.

The update is automatically downloaded and installed by Windows Update, but is also available in the Microsoft Update Catalog, via WSUS and WUfB. Microsoft has also updated the Service Stack Update (SSU). Please note the installation sequence described in the support article and, if applicable, the notes on further requirements and any existing problems.

Updates for Windows Server 2012 / R2

Windows Server 2012/R2 will no longer be supported in October 2023 and will only receive updates with an ESU license. Please note the information on the installation sequence for Windows Server that Microsoft provides in the KB articles.

Update KB5052042 for Windows Server 2012 R2

The update history for Windows Server 2012 R2 can be found on this Microsoft page. Update KB5052042 (Monthly Rollup for Windows Server 2012 R2) has been released for Windows Server 2012 R2 for systems with an ESU license. The update eliminates various vulnerabilities and brings the following fixes.

• [USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update.
• [Digital/Analog converter (DAC)] Fixed: You might experience issues with USB audio devices. This is more likely when you use a DAC audio driver based on USB 1.0. USB audio devices might stop working, which stops playback.

This update is automatically downloaded and installed by Windows Update in Windows Server 2012 R2, but is also available in the Microsoft Update Catalog and via WSUS. Details on fixes and any known problems in connection with the update are listed in the support article.

There is no security-only update for Windows Server 2012 R2.

Update KB5052020 for Windows Server 2012

The update history for Windows Server 2012 can be found on this Microsoft page. Update KB5052020 (Monthly Rollup for Windows Server 2012) has been released for Windows Server 2012 with ESU license. It contains unspecified security patches and brings the following bug fixes

• [USB cameras] Fixed: Your device does not recognize the camera is on. This issue occurs after you install the January 2025 security update.
• [Digital/Analog converter (DAC)] Fixed: You might experience issues with USB audio devices. This is more likely when you use a DAC audio driver based on USB 1.0. USB audio devices might stop working, which stops playback.

This update is available in the Microsoft Update Catalog and via WSUS. In the case of a manual installation, the latest Servicing Stack Update (SSU) must be installed beforehand – although this SSU can no longer be uninstalled. Problems in connection with the update are listed in the KB article.

There is no security-only update for Windows Server 2012.

If in doubt, details on the above updates can be found in the respective Microsoft KB articles.

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