The Exchange Server SU breaks non-English Servers. MS acknowledged the issue and provides an official workaround.
https://support.microsoft.com/en-us/topic/exchange-server-2019-and-2016-august-2023-security-update-installation-fails-on-non-english-operating-systems-ef38d805-f645-4511-8cc5-cf967e5d5c75
MS rereleased the update, supposedly it is fixed now. We will look out for other reviews before installing.
https://techcommunity.microsoft.com/t5/exchange-team-blog/re-release-of-august-2023-exchange-server-security-update/ba-p/3900025
Exchange 2016 CU23 SU9v2 installed without errors, all services came back online like they are supposed to do.
Anyone had issues with 2016 reboot taking excessively long?
Biggest things I'm seeing is CVE-2023-21709 for Exchange requires a PowerShell script to be run after patching. Also, CVE-2023-29328/29330 for Teams affect all devices (Windows, Mac, iOS, and Android).
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