An Incorrect Use of Privileged APIs vulnerability in Unity Parsec on Windows hosts leads…
Priority LOW 38CWE-648Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
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. 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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00185 8th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-54424
- 2026-10-03 Alias added: GHSA-f445-7g93-34v9
References
More Unity vulnerabilities
- TI-2025-37031 Untrusted search path in Unity3D Unity Editor CVSS 3.1HIGH 8.4
- TI-2023-18880 Unity Parsec has a TOCTOU race condition that permits local attackers to escalate… CVSS 3.1HIGH 7.0
- TI-2015-07665 The Unity Web Player plugin before 4.6.6f2 and 5.x before 5.0.3f2 allows attackers to… CVSS 3.0MEDIUM 6.5
Sources
- CVE-2026-54424 · CVE Program
- CVE-2026-54424 · NVD
- FIRST EPSS
- GHSA-f445-7g93-34v9 · GitHub Advisory Database · CC BY 4.0
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