Windows Server 2012 and 2012 R2 need to be upgraded
The last security updates for Windows Server 2012 and 2012 R2 will be available in October 2023.
Please upgrade these Servers to a newer version or purchase the Extended Support. Further operation of unpatched Servers threatens the TU IT-infrastructure and is not recommended.
learn.microsoft.com/en-us/lifecycle/announcements/windows-server-2012-r2-end-of-support