---
id: CVE-2026-54424
title: >-
  An Incorrect Use of Privileged APIs vulnerability in Unity Parsec on Windows
  hosts leads to a potential Elevation of Privilege
summary: "An Incorrect Use of Privileged APIs vulnerability in Unity Parsec on Windows hosts leads to a potential Elevation of Privilege. This issue affects Parsec through v2026-05-04.0. The patched version is\_Parsec for Windows version 150-104a. …"
severity: high
cvss: 8.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-648
published: '2026-07-04'
updated: '2026-07-04'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-54424'
references:
  - url: 'https://github.com/tomadimitrie/CVE-2026-54424'
    label: cve@mitre.org
  - url: 'https://parsec.app/'
    label: cve@mitre.org
  - url: 'https://support.parsec.app/hc/en-us/articles/50612943726612-CVE-2026-54424'
    label: cve@mitre.org
  - url: 'https://www.tomadimitrie.dev/blog/CVE-2026-54424'
    label: cve@mitre.org
tags:
  - nvd
  - exploit-available
epss: 0.00185
epssPercentile: 0.073
ingestedAt: '2026-07-04T21:57:46.821Z'
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/tomadimitrie/CVE-2026-54424'
  checkedAt: '2026-09-27T10:33:50.989Z'
exploitAvailable: true
---

## Overview

An Incorrect Use of Privileged APIs vulnerability in Unity Parsec on Windows hosts leads to a potential Elevation of Privilege. This issue affects Parsec through v2026-05-04.0. The patched version is Parsec for Windows version 150-104a. A user can generate a situation where there is an instance of parsecd.exe running as NT AUTHORITY\SYSTEM with a user-controlled value of the AppData environment variable.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.