CVE-2021-47739 Epic Games Easy Anti-Cheat 4.0 Local Privilege Escalation via Unquoted Service Path
Local attackers can execute arbitrary code with system privileges by exploiting an unquoted service path in Epic Games Easy Anti-Cheat.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-47739?
CVE-2021-47739 is a high-severity vulnerability in Epic Games Easy Anti-Cheat, published on 23 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Epic Games Easy Anti-Cheat 4.0 contains an unquoted service path vulnerability that allows local non-privileged users to execute arbitrary code with elevated system privileges. Attackers can exploit the service configuration by inserting malicious code in the system root path that would execute with LocalSystem privileges during application startup.
Weakness: CWE-428
Which versions are affected by CVE-2021-47739?
How do I fix CVE-2021-47739?
No fix has been published for CVE-2021-47739 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-47739 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47739 exists.
Sources
Also known as GHSA-r6ff-6pwf-xvp7.