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 Oct 11, 2022
Version 2.0
Blog Post
GeorgeMilano This SU destroyed one of our Exchange 2019 Edge servers, it was rendered completely unusable, none of the services would start and it broke WINRM at a low level and being console mode, was impossible to fix. 1'st time I've experienced an unexpected issue with an SU as well. Luckily, Edge servers are disposable but still, was a shock and took several hours to repair. I've applied this SU to a dozen other Exchange servers and Edge servers without any other issues.
I was also hoping this SU would resolve the two current 0-day vulnerabilities. We've applied the SU and mitigations and the ones in EOMTv2. Sadly, Defender ATP still reports Exchange as High risk with 0-day vulnerabilities. Hoping soon, Exchange will address the 0-day issues properly