CVE-2026-54424: Unity Parsec

High severity, CVSS 8.4. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Unity Parsec: up to and including v2026-05-04.0

Published 2026-07-04. Last modified 2026-07-06.