Exchange 2013 MSExchange Common Event ID 4999

Michael Fiala 1

This just started on our Exchange 2013 server after the CU23 update was installed (KB5000871). We receive the following many times a day. I have gone through countless articles, but apparently 4999 is very generic and there are many different versions to this particular Event ID, but I cannot find one specific for this.

Watson report about to be sent for process id: 21000, with parameters: E12IIS, c-RTL-AMD64, 15.00.1497.012, w3wp#MSExchangeOWAAppPool, M.E.Data.ApplicationLogic, M.E.D.A.C.BackEndServer.FromString, System.ArgumentException, 96e2, 15.00.1497.012.
ErrorReportingEnabled: False

Please advise as to a fix. Thank you

Eric Yin-MSFT 4,386 Reputation points

2021-04-07T02:47:55.547+00:00

Hi,
Did you receive those errors before you installed the security updates?
If no, you can try to uninstall the SU and re-install it in adminitrator Command.
If it has been a long time, do you find any business impacts that it brings to your Exchange server? I mean you can ignore it temporarily if you only find errors in event log, then plan a co-existance with higher Exchange version and see if same error reported on that server.

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Eric Yin-MSFT 4,386 Reputation points

2021-04-09T09:08:45.007+00:00

I am writing here to confirm with you how the thing going now?
If you need further help, please provide more detailed information, so that we can give more appropriate suggestions.

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Michael Fiala 1 Reputation point

2021-04-15T14:44:22.137+00:00

No, we did not receive the errors before we installed the SU. Before I uninstall and re-install, is there going to be any patch to this, or the SU in general to be released soon that might resolve the issue?
Eric Yin-MSFT 4,386 Reputation points

2021-04-16T07:27:45.643+00:00

Acutally only those issues widely exist would be fixed in SU, and this one seems not.
The latest SU is about some Remote Code Execution Vulnerability: https://support.microsoft.com/zh-cn/topic/description-of-the-security-update-for-microsoft-exchange-server-2019-2016-and-2013-april-13-2021-kb5001779-8e08f3b3-fc7b-466c-bbb7-5d5aa16ef064