CVE-2026-54424

Elevated Privilege via Incorrect Use of Privileged APIs in Unity Parsec on Windows

Published Jul 4, 2026 CVSS 3.1 · 8.4 High EPSS < 1% KEV · Not listed
Description
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

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Elevated Privilege via Incorrect Use of Privileged APIs in Unity Parsec on Windows
Type Values Removed Values Added
Title Parsec Privilege Escalation via AppData Environment Variable Manipulation
Type Values Removed Values Added
Title Parsec Privilege Escalation via AppData Environment Variable Manipulation
Type Values Removed Values Added
Title Privilege Escalation via AppData Variable in Unity Parsec on Windows
Type Values Removed Values Added
Title Privilege Escalation via AppData Variable in Unity Parsec on Windows
Type Values Removed Values Added
Title Elevation of Privilege in Unity Parsec on Windows via Malicious AppData Environment Variable
Type Values Removed Values Added
Title Elevation of Privilege in Unity Parsec on Windows via Malicious AppData Environment Variable
Type Values Removed Values Added
Title Unity Parsec Elevation of Privilege via AppData Variable
Type Values Removed Values Added
Title Unity Parsec Elevation of Privilege via AppData Variable
Type Values Removed Values Added
Title Privilege Escalation via AppData Environment Variable in Unity Parsec
Type Values Removed Values Added
Title Privilege Escalation via AppData Environment Variable in Unity Parsec
Type Values Removed Values Added
Title Parsec Elevated Privilege Vulnerability via AppData Manipulation
Type Values Removed Values Added
Title Parsec Elevated Privilege Vulnerability via AppData Manipulation
Type Values Removed Values Added
Title Parsec Elevation of Privilege via AppData Manipulation
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Parsec Elevation of Privilege via AppData Manipulation
Type Values Removed Values Added
Title Privileged API Misuse in Unity Parsec Enabling SYSTEM Account Elevation
Type Values Removed Values Added
Title Privileged API Misuse in Unity Parsec Enabling SYSTEM Account Elevation
Type Values Removed Values Added
Title Parsec Windows Elevation of Privilege via Incorrect Use of Privileged APIs
Type Values Removed Values Added
Title Parsec Windows Elevation of Privilege via Incorrect Use of Privileged APIs
Type Values Removed Values Added
Description 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.
First Time appeared Unity
Unity parsec
Weaknesses CWE-648
CPEs cpe:2.3:a:unity:parsec:*:*:*:*:*:*:*:*
Vendors & Products Unity
Unity parsec
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jul 6, 2026, 3:35 PM
Reserved
Jun 14, 2026, 4:15 AM
Status
Awaiting Analysis
Published
Jul 4, 2026, 1:16 AM
Modified
Oct 25, 2026, 3:10 PM