What is CVE-2021-47739?

CVE-2021-47739 is a high-severity vulnerability in Epic Games Easy Anti-Cheat, classified under Unquoted Search Path or Element. CVSS score: 8.4/10. Published 2025-12-23.

How severe is CVE-2021-47739?

High severity. CVSS v3 base score is 8.4 out of 10.

Vulnerability in Epic Games Easy Anti-Cheat

CVE-2021-47739

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.

EPSS: 0.002 (6.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Epic Games Easy Anti-cheat — versions 4.0

Weakness classification (CWE)

CWE-428 — Unquoted Search Path or Element

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2021-47739?: CVE-2021-47739 is a high-severity vulnerability in Epic Games Easy Anti-Cheat, classified under Unquoted Search Path or Element. CVSS score: 8.4/10. Published 2025-12-23.
How severe is CVE-2021-47739?: High severity. CVSS v3 base score is 8.4 out of 10.