cvedb.io
CVE-2021-34857
HIGH · CVSS 8.8
EPSS exploitation probability: 0%
Published 2021-10-25T17:15:08.293 · Last modified 2026-06-17T03:56:41.477

Summary

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.3 (49160). 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 user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-13601.

Affected products

parallels — parallels_desktop

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.