Microsoft has released security updates (SUs) that resolve vulnerabilities found in:
Exchange Server 2013
Exchange Server 2016
Exchange Server 2019
IMPORTANT: When manually installing SUs...
Updated Mar 16, 2022
Version 6.0
Blog Post
Greetings,
As per Patrick70, we are also seeing issues with the Microsoft Exchange Service Host service faulting and restarting, again continuously. Uninstalling the SU does seem to resolve the issue but obviously isn;t a great situation to be in.
This is on our Exchange 2013 CU23 fully updated DAG servers.
EventID: 4999
Source: MSExchange Common
Watson report about to be sent for process id: 40372, with parameters: E12IIS, c-RTL-AMD64, 15.00.1497.033, M.Exchange.ServiceHost, M.Exchange.Diagnostics, M.E.D.ChainedSerializationBinder.LoadType, M.E.Diagnostics.BlockedDeserializeTypeException, f618, 15.00.1497.032.
ErrorReportingEnabled: True
Any update would be greatly appreciated.
Best wishes, Caleb