cvedb.io
CVE-2021-34856
HIGH · CVSS 8.8
EPSS exploitation probability: 0%
Published 2021-10-25T17:15:08.227 · Last modified 2026-06-17T03:56:41.367

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 virtio-gpu virtual device. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-13581.

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.