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Exchange Team Blog
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Released: July 2021 Exchange Server Security Updates

The_Exchange_Team's avatar
The_Exchange_Team
Platinum Contributor
Jul 13, 2021
Microsoft has released security updates for vulnerabilities found in: Exchange Server 2013 Exchange Server 2016 Exchange Server 2019 All versions (Cumulative Update levels) are impacted. ...
Updated Aug 05, 2021
Version 15.0
announcements
Exchange 2013
exchange 2016
exchange 2019
security
setup
Kokkie's avatar
Kokkie
Copper Contributor
Jul 19, 2021

Thanks for the great blog and comments.

 

I am planning to install this update this week, I have found that we have an expired OAuth certificate. Not sure what it is used for, but as it has been expired for 2 years already I assume that it was not really necessary. I do not want to end up in the OWA/ECP error 500, so I was wondering if it would be a good idea to Publish a new certificate first and then start the update. Or will it conflict / stop publishing when I start the update directly after the publish commands?

 

My plan for a standalone Exchange 2013:

1. Publish new certificate and restart AppPools & IIS.

2. Wait about 15 minutes.

3. Run Windows Update to install KB5004778

4. Run the Schema Update

 

Does this make any sense?