Call Studio Engineering Special 12.6(1)_ES5 cannot be uninstalled or reinstalled if Call Studio 12.6 is uninstalled before uninstalling Call Studio Engineering Special 12.6(1)_ES5. This is a bug of the uninstall function. Hope it can be fixed soon. 

I have applied the fix for log4j patch to Cisco Unified Call Studio 12.6, but our security team still complained below war/jar files. Is there another patch to fix? thanks!  The vulnerable instances are located at......\CallStudio12.6\eclipse\plugins...