CVE-2020-17393

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.

• CWE-20

• https://kb.parallels.com/en/125013Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-20-1011/Third Party Advisory, VDB Entry
• https://kb.parallels.com/en/125013Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-20-1011/Third Party Advisory, VDB Entry

Published

Aug 25, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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