High CPU Usage Running PS Scripts on Windows Server 2016 after applying KB4556813

M

Mario Patov

Hello,


We patched one Windows Server 2016 Standard edition with KB4556813 and after this patch, all of our Power Shell scripts running on this server started generating 100% CPU usage.

Basically, this server is a monitoring satellite ( Icinga2 service) which is running couple of hundred PS scripts with PS Remote. It is checking some specific values on the remote Windows servers and is reporting back to our monitoring their status.


Prior to this update and now after removing KB4556813 all scripts are running fine, with low to none CPU usage. While when KB4556813 is applied, we can see like each script remains active having its powershell.exe process kept in running state. It looks like script do not exit or it is taken each too much time now to finish.


Anyone any ideas ? Thank you in advance!



Mario


Mario Patov

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