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Exchange Team Blog
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Released: February 2023 Exchange Server Security Updates

The_Exchange_Team's avatar
The_Exchange_Team
Platinum Contributor
Feb 14, 2023
Microsoft has released Security Updates (SUs) for vulnerabilities found in: Exchange Server 2013 Exchange Server 2016 Exchange Server 2019 SUs are available in a self-extracting auto-elev...
Updated Mar 03, 2023
Version 13.0
announcements
Exchange 2013
exchange 2016
exchange 2019
security
setup
zne89's avatar
zne89
Copper Contributor
Feb 23, 2023

Hi LukasSMSFT , Nino_Bilic 

when does the workaround need to be applied? After all servers (10 Servers) in the DAG have the February patch installed or before (after the first one, second one ,...)?
The January SU and Certificate signing of PowerShell serialization payload are not yet installed.

 

After installing the February SU in our test environment, we get the following error:

Does the workaround also help here?

 

Watson report about to be sent for process id: 11960, with parameters: E12IIS, c-RTL-AMD64, 15.02.1118.025, w3wp#MSExchangeOWAAppPool, M.E.C.Owa2.Server, M.E.C.O.S.C.OwaMapiNotificationManager.SubscribeToSuiteNotification, System.NotSupportedException, 80d2-dumptidset, 15.02.1118.025.
ErrorReportingEnabled: False 

Thank you and best regards.