This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop Parallels Desktop 17.1.1. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the update machanism. The product sets incorrect permissions on sensitive files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-16395.