CVE-2023-27327

Parallels Desktop Toolgate Time-Of-Check Time-Of-Use 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 high-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 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 current user on the host system. Was ZDI-CAN-18964.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector : AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Exploitability : 0.8 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://kb.parallels.com/125013	Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-215/	Third Party Advisory
https://kb.parallels.com/125013	Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-215/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:parallels:parallels_desktop:*:*:*:*:*:macos:*:*

History

06 Aug 2025, 21:37

Type	Values Removed	Values Added
First Time		Parallels parallels Desktop Parallels
References	~~() https://kb.parallels.com/125013 -~~	() https://kb.parallels.com/125013 - Vendor Advisory
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-23-215/ -~~	() https://www.zerodayinitiative.com/advisories/ZDI-23-215/ - Third Party Advisory
CPE		cpe:2.3:a:parallels:parallels_desktop::::::macos::*

Information

Published : 2024-05-03 02:15

Updated : 2025-08-06 21:37

NVD link : CVE-2023-27327

Mitre link : CVE-2023-27327

CVE.ORG link : CVE-2023-27327

JSON object : View

Products Affected

parallels

parallels_desktop

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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