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Released: August 2023 Exchange Server Security Updates

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The_Exchange_Team
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Aug 08, 2023
Update 10/10/2023: Our recommendation to address CVE-2023-21709 is now changed; please see the changes below. Update 9/12/2023: As a part of the September 2023 "Patch Tuesday" we have released a fe...
Updated Oct 10, 2023
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Nino_Bilic's avatar
Nino_Bilic
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Aug 11, 2023

droberts83 It is unclear to my how you ended here but - to be honest, after seeing what you have tried, I feel like the easiest way to go about resolving this (seeing that this is a management only server, right?) is to simply nuke the machine / reformat / reinstall the OS and run a /recoverserver setup.

https://learn.microsoft.com/en-us/exchange/high-availability/disaster-recovery/recover-exchange-servers?view=exchserver-2019

Don't uninstall anything, just literally reformat it, get the OS installed (same name), update it (Windows), install Exchange prerequisites and do a recover server setup using the last CU that you have installed now. Once that is done, you can roll forward with SUs.