CVE-2021-31422: Parallels Desktop e1000e Time-Of-Check Time-Of-Use Privilege Escalation Vulnerability
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 e1000e virtual device. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-12527.
Other sources
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. 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 e1000e virtual device. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID for this Parallels Desktop vulnerability?
The vulnerability ID for this Parallels Desktop vulnerability is CVE-2021-31422.
What is the severity level of CVE-2021-31422?
The severity level of CVE-2021-31422 is high with a score of 7.5.
How can this vulnerability be exploited?
This vulnerability can only be exploited by local attackers who have the ability to execute high-privileged code on the target guest system.
What software versions are affected by CVE-2021-31422?
CVE-2021-31422 affects Parallels Desktop 16.1.1-49141.
Are there any fixes or patches available for this vulnerability?
For information on available fixes or patches, please refer to the vendor's official website or contact Parallels support.