Windows machine running with critical application had repeated major incidents due to high CPU usage.
As per analysis from Microsoft Support looking the Memory Dump, a possible issue can be because of high number of zombie processes
Around 3000 zombie process with cspmclient.exe
McAfee Antivirus causing the issue
Release : 4.53
Component : PASSWORD AUTHORITY PA SERVER
Looks like cspmclient was victimized by the antivirus or other application on the machine
Remove the A2A folders from Antivirus scans the issue does not happen anymore.
The fact that it doesn't happen anymore confirms that the AV product caused the problem.