Out-of-band updates to address a Windows Server domain controller issue

Microsoft has released out-of-band (OOB) updates for some versions of Windows to address an issue related to a memory leak in the Local Security Authority Subsystem Service (LSASS) that affects Windows Server Domain Controllers. This issue is observed when Kerberos authentication requests are serviced by on-premises and cloud-based Active Directory domain controllers. Home users will not be impacted as this issue is not expected to affect personal devices. The updates are cumulative and available only on the Microsoft Update Catalog. It is recommended that organizations using affected server platforms as DCs apply the OOB update. The updates include KB5037422 for Windows Server 2022, KB5037423 for Windows Server 2016, and KB5037426 for Windows Server 2012 R2, while the update for Windows Server 2019 is yet to be released.

For those intending to install the OOB updates, it's not necessary to apply any previous updates before installing these since the updates supersede all previous updates for affected versions. For further information and instructions on how to install updates in your version of Windows, refer to the resources for your version of Windows.

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