CVE-2023-27327

HIGH

Parallels Desktop < 18.1.1 (53328) - Local Privilege Escalation via Toolgate Race Condition

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-27327. PoCs published by kn32.

AI-analyzed exploit summary This repository contains functional exploit code for CVE-2023-27327 and CVE-2023-27328, which can be chained to escape a Parallels Desktop VM. The exploits involve a race condition to write arbitrary files on the host and plist injection to achieve code execution.

Description

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.

Exploits (1)

nomisec WORKING POC 14 stars
by kn32 · poc
https://github.com/kn32/parallels-plist-escape

This repository contains functional exploit code for CVE-2023-27327 and CVE-2023-27328, which can be chained to escape a Parallels Desktop VM. The exploits involve a race condition to write arbitrary files on the host and plist injection to achieve code execution.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Racy
Target: Parallels Desktop prior to 18.1.1
Auth required
Prerequisites: Root access in the guest VM · Parallels Tools installed · Shared folders configured
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (2)

Core 2
Core References
Third Party Advisory x_research-advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-215/
Vendor Advisory vendor-advisory
https://kb.parallels.com/125013

Scores

CVSS v3 7.5
EPSS 0.0040
EPSS Percentile 32.3%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-367
Status published
Products (1)
parallels/parallels_desktop < 18.1.1_\(53328\)
Published May 03, 2024
Tracked Since Feb 18, 2026