Epic Games Psyonix Rocket League <= 1.95 Elevation of Privileges via Insecure Permissions

Advisories

severity: high
date: December 31, 2025
Affecting: Epic Games Psyonix Rocket League <= 1.95
CVE: CVE-2021-47742
CWE: CWE-732 Incorrect Permission Assignment for Critical Resource
CVSS: 8.5
CVSS V4 Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References: Zero Science Lab Disclosure (ZSL-2021-5650)
Packet Storm Security Exploit Entry
IBM X-Force Vulnerability Exchange Entry
Rocket League Product Homepage
Credit: LiquidWorm as Gjoko Krstic of Zero Science Lab
Description: Epic Games Psyonix Rocket League <=1.95 contains an insecure permissions vulnerability that allows authenticated users to modify executable files with full access permissions. Attackers can leverage the 'F' (Full) flag for the 'Authenticated Users' group to change executable files and potentially escalate system privileges.