Privilege Escalation Vulnerability in Parallels Desktop by Parallels
CVE-2021-34987

8.2HIGH

Key Information:

Vendor

Parallels

Status
Vendor
CVE Published:
15 July 2022

What is CVE-2021-34987?

This vulnerability in Parallels Desktop 16.5.1 pertains to the HDAudio virtual device, where a flaw in the validation of user-supplied data length can be exploited by local attackers. By executing high-privileged code on the guest system, an attacker can manipulate the buffer, leading to privilege escalation and potential execution of arbitrary code within the hypervisor environment.

Affected Version(s)

Desktop 16.5.1 (49187)

References

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ben McBride
.