Advisory Details

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability.

The specific flaw exists within the WinAppHelper component. The issue results from the lack of proper access control. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor.

Fixed in version 17

• 2021-04-11 - Vulnerability reported to vendor
• 2021-08-25 - Coordinated public release of advisory
• 2021-08-26 - Advisory Updated