CVE-2023-50226

HIGH

Parallels Desktop < 17.1.7(51588) - Local Privilege Escalation via Updater Service Link Following

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-50226. PoCs published by kn32.

AI-analyzed exploit summary This repository contains a functional privilege escalation exploit for CVE-2023-50226 in Parallels Desktop. The exploit leverages a symlink race condition via the `prl_update_helper` binary to overwrite `/etc/sudoers.d/Parallels` with arbitrary content, granting root privileges.

Description

Parallels Desktop Updater Link Following 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 host system in order to exploit this vulnerability. The specific flaw exists within the Updater service. By creating a symbolic link, an attacker can abuse the service to move arbitrary files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. . Was ZDI-CAN-21227.

Exploits (1)

nomisec WORKING POC 8 stars
by kn32 · poc
https://github.com/kn32/parallels-file-move-privesc

This repository contains a functional privilege escalation exploit for CVE-2023-50226 in Parallels Desktop. The exploit leverages a symlink race condition via the `prl_update_helper` binary to overwrite `/etc/sudoers.d/Parallels` with arbitrary content, granting root privileges.

Classification
Working Poc 100%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Parallels Desktop versions before 18.3.2
No auth needed
Prerequisites: Parallels Desktop installed · Access to a user account on the target system
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-23-1805/
Vendor Advisory vendor-advisory
https://kb.parallels.com/en/125013

Scores

CVSS v3 7.8
EPSS 0.0069
EPSS Percentile 48.0%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-59
Status published
Products (1)
parallels/parallels_desktop < 17.1.7_\(51588\)
Published May 03, 2024
Tracked Since Feb 18, 2026