CVE-2026-54424: High severity Unity Parsec for Windows vulnerability
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 Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Parsec for Windowsto a version that resolves this vulnerability.Fixed in 150-104a
Event History
Frequently Asked Questions
What is the severity of CVE-2026-54424?
The severity of CVE-2026-54424 is rated high with a score of 8.4.
How do I fix CVE-2026-54424?
To fix CVE-2026-54424, update to Parsec for Windows version 150-104a or later.
What impact does CVE-2026-54424 have on my system?
CVE-2026-54424 could lead to an elevation of privilege on systems running affected versions of Unity Parsec.
Is my version of Unity Parsec affected by CVE-2026-54424?
Versions of Unity Parsec through v2026-05-04.0 are affected by CVE-2026-54424.
What type of vulnerability is CVE-2026-54424?
CVE-2026-54424 is classified as an Incorrect Use of Privileged APIs vulnerability.