CVE-2020-17393: Parallels Desktop

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

This vulnerability allows local attackers to disclose information on affected installations of Parallels Desktop 15.1.3-47255. 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 prl_hypervisor kext. The issue results from the lack of proper validation of user-supplied data, which can result a pointer to be leaked after the handler is done. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel. Was ZDI-CAN-10520.

Affected products

• Parallels Parallels Desktop: before 15.1.4 (fixed in 15.1.4)

Published 2020-08-25. Last modified 2026-06-17.