What is CVE-2021-31426?

CVE-2021-31426 is a vulnerability that allows local attackers to escalate privileges in Parallels Desktop 16.1.2-49151.

How severe is CVE-2021-31426?

CVE-2021-31426 has a severity rating of 8.8, which is considered high.

How can CVE-2021-31426 be exploited?

To exploit CVE-2021-31426, the attacker must first gain the ability to execute low-privileged code on the target system.

What software versions are affected by CVE-2021-31426?

CVE-2021-31426 affects Parallels Desktop 16.1.2-49151.

How can I fix CVE-2021-31426?

To fix CVE-2021-31426, it is recommended to update Parallels Desktop to a version that is not affected by the vulnerability.

Vulnerability/
CVE-2021-31426

high

8.8

CWE

190

29/4/2021

5/5/2021

21/10/2023

CVE-2021-31426: Parallels Desktop Tools Integer Overflow Privilege Escalation Vulnerability

First published: Thu Apr 29 2021(Updated: )

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.2-49151. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the Parallels Tools component. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel on the target guest system. Was ZDI-CAN-12791.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Parallels Parallels Desktop	=16.1.2-49151
Parallels Desktop

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Frequently Asked Questions

What is CVE-2021-31426?
CVE-2021-31426 is a vulnerability that allows local attackers to escalate privileges in Parallels Desktop 16.1.2-49151.
How severe is CVE-2021-31426?
CVE-2021-31426 has a severity rating of 8.8, which is considered high.
How can CVE-2021-31426 be exploited?
To exploit CVE-2021-31426, the attacker must first gain the ability to execute low-privileged code on the target system.
What software versions are affected by CVE-2021-31426?
CVE-2021-31426 affects Parallels Desktop 16.1.2-49151.
How can I fix CVE-2021-31426?
To fix CVE-2021-31426, it is recommended to update Parallels Desktop to a version that is not affected by the vulnerability.

collector/nvd-index
collector/zdi-advisory
alias/ZDI-21-433
alias/ZDI-CAN-12791
alias/CVE-2021-31426
vendor/parallels
canonical/parallels parallels desktop
version/parallels parallels desktop/16.1.2-49151
canonical/parallels desktop

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