CVE-2021-34864

Description

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 low-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the WinAppHelper component. The issue results from the lack of proper access control. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-13543.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.10%
Third-Party Advisory zerodayinitiative.com
Affected: Parallels Desktop
Published at:
Updated at:

References

Link Tags
https://www.zerodayinitiative.com/advisories/ZDI-21-1000/ third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2021-34864?
CVE-2021-34864 has been scored as a high severity vulnerability.
How to fix CVE-2021-34864?
To fix CVE-2021-34864, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-34864 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-34864 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-34864?
CVE-2021-34864 affects Parallels Desktop.
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