What’s Vulnerable › Vulnerabilities

CVE-2020-17394

• Severity: medium (CVSS 6.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% 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-129

Description

This vulnerability allows local attackers to disclose sensitive information on affected installations of Parallels Desktop 15.1.4. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the OEMNet component. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute code in the context of the hypervisor. Was ZDI-CAN-11132.

Affected products

• Parallels Desktop: before 16.0.0 — fixed in 16.0.0

How to fix

Upgrade to a fixed version: Parallels Desktop 16.0.0. Check the vendor advisory for mitigations.

References

• https://kb.parallels.com/en/125013
• https://www.zerodayinitiative.com/advisories/ZDI-20-1012/
• https://kb.parallels.com/en/125013
• https://www.zerodayinitiative.com/advisories/ZDI-20-1012/

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