Unity Parsec has a TOCTOU race condition that permits local attackers to escalate privileges to SYSTEM if Parsec was installed in "Per User" mode. The application intentionally launches DLLs from a user-owned directory but intended to always perform integrity verification of those DLLs. This affects Parsec Loader versions through 8. Parsec Loader 9 is a fixed version.
https://www.kb.cert.org/vuls/id/287122
https://support.parsec.app/hc/en-us/articles/18311425588237-CVE-2023-37250