CVE-2023-27328 Parallels Desktop Toolgate XML Injection Local Privilege Escalation Vulnerability

What is CVE-2023-27328?

CVE-2023-27328 is a high-severity vulnerability in Parallels Parallels Desktop, published on 3 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Parallels Desktop Toolgate XML Injection Local 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 guest system in order to exploit this vulnerability.

The specific flaw exists within the Toolgate component. The issue results from the lack of proper validation of a user-supplied string before using it to construct an XML document. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-19187.

Weakness: CWE-91

Which versions are affected by CVE-2023-27328?

It affects 1 product.

Products include Parallels Parallels Desktop.

How do I fix CVE-2023-27328?

No fix has been published for CVE-2023-27328 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-27328 being exploited?

There is no known exploitation of CVE-2023-27328 in the wild and no public exploit code.

Other vulnerabilities in Parallels Parallels Desktop

• CVE-2025-31359 Path traversal in Parallels Desktop for Mac High 8.8
• CVE-2021-34864 Privilege escalation in Desktop High 8.8
• CVE-2021-31420 Memory corruption in Desktop High 8.8
• CVE-2021-31424 Memory corruption in Desktop High 8.8
• CVE-2021-31425 Integer overflow in Desktop High 8.8

All Parallels Parallels Desktop vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-h2gx-393w-gcmp.