CVE-2020-17393

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-08-25 · updated 2026-06-17
Weakness: CWE-20

Description

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 Desktop: before 15.1.4 — fixed in 15.1.4

How to fix

Upgrade to a fixed version: Parallels Desktop 15.1.4. Check the vendor advisory for mitigations.

References

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