KB5030213 Cumulative Update for Windows Server 2016

KB5030213 is the cumulative update for Windows Server 2016 for the month of September 2023. The update was released on 12th September under the ‘Patch Tuesday’ project.

We look at some details of the KB5030213 cumulative update below.

Salient points

  • KB5030213 is a cumulative update that supersedes KB5029242. KB5029242 was released on 8th August 2023. You can read more about KB5029242 on this page.
  • KB5030213 corresponds to server build 14393.6252. KB5029242 corresponds to server build 14393.6167. Assuming you have installed KB5029242 on Windows Server 2016, you will upgrade from build 6167 to 6252.
  • A new Servicing Stack Update has been released for Windows Server 2016 on 12th September 2023. The SSU or Servicing Stack Update KB5030504 needs to be installed prior to installing KB5030213 on Windows Server 2016.
  • 16 security vulnerabilities have been disclosed for Windows Server 2016 in the September 2023 security bulletin of Microsoft. None of these vulnerabilities have a ‘CRITICAL’ severity level.
  • There are no zero-day threats affecting Windows Server 2016 and Windows Server 2016 Server Core installation under the September security bulletin.
  • The fix for Active Directory domain join issues has been implemented in KB5030213. The issue was separately tracker under KB5020276.

Download KB5030213

KB5030213 can be installed automatically using one of the following methods:

  • Windows Update
  • Windows Update for Business
  • WSUS or Windows Server Update Service

WSUS or Windows Server Update Service remains the most preferred way to patch Windows Servers.

If you choose to install KB5030213 automatically, the Servicing Stack Update KB5030504 will be automatically deployed as part of the update process. The SSU KB5030504 is deployed before KB5030213 gets deployed.

You can also choose to manually deploy the KB5030213 cumulative update. For manual deployments, the installation process is a two-step exercise.

  1. Download and install KB5030504 Servicing Stack Update
  2. Download and install KB5030213 cumulative update

We can download the SSU and Cumulative Updates from the Microsoft Update Catalog site. Or, you could use the direct download links shared below to download the SSU and cumulative update offline installer files.

UpdateDownload from Microsoft CatalogDirect download linkSize of the update
KB5030504Download KB5030504Direct Download KB5030504 11.7 MB
KB5030213Download KB5030213Direct Download KB50302131622.9 MB

It may be pertinent to mention that the Servicing Stack updates do not cause server reboots. However, the cumulative updates will cause a server to restart.

We strongly recommend installing cumulative updates as part of a managed change or managed change management exercise.


There are 16 security vulnerabilities that have been announced for Windows Server 2016 and Windows Server 2016 Server Core installation. None of these threats are CRITICAL in nature. None of the disclosed vulnerabilities are zero-day threats.

Therefore, we have not shared any threat for September 2023 for Windows Server 2016 in this report.

KB5030213 Changelog

The following changes or improvements are part of the KB5030213 cumulative update:

  • This update supports daylight saving time (DST) changes in Israel.
  • This update addresses an issue that affects remote procedure calls (RPC) to the Win32_User or Win32_Group WMI class. The domain member that runs the RPC contacts the primary domain controller (PDC). When multiple RPCs occur at the same time on many domain members, this might overwhelm the PDC.
  • This update addresses an issue that affects the LanmanServer Service. It stops working in clusters that do not have an Administrative Access Point. These are also known as AD-Detached Clusters. They are recommended for Microsoft Exchange on some versions of Windows. To learn more, see Database availability groups.
  • This update addresses an issue that affects authentication. Using a smart card to join or rejoin a computer to an Active Directory domain might fail. This occurs after you install Windows updates dated October 2022 or later. For more details, seeĀ KB5020276.

September 2023 Security Updates by Microsoft

You may also like to read more about security updates shared below:

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Rajesh Dhawan

Rajesh Dhawan is a technology professional who loves to blog about smart wearables, Cloud computing and Microsoft technologies. He loves to break complex problems into manageable chunks of meaningful information.