CVE-2021-47742: Epic Games Psyonix Rocket League <=1.95 Elevation of Privileges via Insecure Permissions

Severity: high (CVSS 8.8 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: 2025-12-31 · updated 2026-06-17
Weakness: CWE-732

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.

Affected products

Epic Games Inc. Epic Games Psyonix Rocket League: through 1.95

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/201128
https://packetstormsecurity.com/files/162435
https://www.rocketleague.com/
https://www.vulncheck.com/advisories/epic-games-psyonix-rocket-league-elevation-of-privileges-via-insecure-permissions
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5650.php

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