High severity8.2NVD Advisory· Published Apr 22, 2021· Updated Jun 17, 2026
CVE-2021-27278
CVE-2021-27278
Description
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.1-49141. 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 Toolgate component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the current user on the host system. Was ZDI-CAN-12130.
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Affected products
2- Parallels/Desktopv5Range: 16.1.1-49141
Patches
Vulnerability mechanics
References
2- kb.parallels.com/en/125013nvdVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-21-412/nvdThird Party AdvisoryVDB Entry
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