What is the severity of ZDI-CAN-12791?

The severity of ZDI-CAN-12791 is critical as it allows local attackers to escalate privileges.

How do I fix ZDI-CAN-12791?

To fix ZDI-CAN-12791, ensure you update Parallels Desktop to the latest version provided by the vendor.

Who is affected by ZDI-CAN-12791?

ZDI-CAN-12791 affects users of Parallels Desktop for Mac with versions containing this vulnerability.

Can ZDI-CAN-12791 be exploited remotely?

No, ZDI-CAN-12791 requires an attacker to already have local access to the system.

What kind of attack does ZDI-CAN-12791 facilitate?

ZDI-CAN-12791 facilitates local privilege escalation attacks on the affected installations.

Vulnerability/
ZDI-CAN-12791

high

8.8

CWE

190

27/2/2025

ZDI-CAN-12791: Parallels Desktop Tools Integer Overflow Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. 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.

Affected Software	Affected Version	How to fix
Parallels Desktop for Mac

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Frequently Asked Questions

What is the severity of ZDI-CAN-12791?
The severity of ZDI-CAN-12791 is critical as it allows local attackers to escalate privileges.
How do I fix ZDI-CAN-12791?
To fix ZDI-CAN-12791, ensure you update Parallels Desktop to the latest version provided by the vendor.
Who is affected by ZDI-CAN-12791?
ZDI-CAN-12791 affects users of Parallels Desktop for Mac with versions containing this vulnerability.
Can ZDI-CAN-12791 be exploited remotely?
No, ZDI-CAN-12791 requires an attacker to already have local access to the system.
What kind of attack does ZDI-CAN-12791 facilitate?
ZDI-CAN-12791 facilitates local privilege escalation attacks on the affected installations.

agent/references
agent/softwarecombine
agent/title
agent/weakness
agent/severity
agent/event
agent/type
agent/description
agent/source
agent/tags
collector/zdi-advisory
source/ZDI
alias/ZDI-21-433
alias/ZDI-CAN-12791
alias/CVE-2021-31426
agent/software-canonical-lookup
agent/software-canonical-lookup-request
vendor/parallels
canonical/parallels desktop for mac

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