Exchange Security Update October 2022 KB5019077

The estimated reading time 1 minutes

Microsoft released a new security patch for Exchange 2013/2016/2019 some hours ago. Procedure for installation is the well known one, like the last security updates. This link is the official Exchange Team Blog.

NOTE: Those who thought this patch may fix the zero day issue from september 2022, I can tell you; It does NOT. This information is related to the Exchange Team Blog which has a big red NOTE. Workaround or EEMS have to do the trick.

Of course Microsoft recommends to enable extended protection EP, but lot’s of customers can not activate because of this enormous limitations. See them here.

After all the information finalle the links to download this patch:

Exchange Server 2013 CU23
Exchange Server 2016 CU22 and CU23
Exchange Server 2019 CU11 and CU12

The following section is pretty interesting:

There is no homework after installing this patch, but I personally recommend to start Exchange health checker.

Happy updating and hopefully no errors after installation.

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