CVE-2026-54424

Severity: high (CVSS 8.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-04 · updated 2026-10-25
Weakness: CWE-648

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.

Affected products

Unity Parsec: through v2026-05-04.0

References

https://github.com/tomadimitrie/CVE-2026-54424
https://parsec.app/
https://support.parsec.app/hc/en-us/articles/50612943726612-CVE-2026-54424
https://www.tomadimitrie.dev/blog/CVE-2026-54424

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