CVE-2021-47739

HIGH EPSS 6.5%
Published Dec 23, 20256mo ago · Modified Jun 17, 20261w ago
8.5 CVSS 4.0
High
Find Similar
Published Dec 23, 2025 6mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
8.5
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
6.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-428

References 5

  • easy.ac https://www.easy.ac
  • epicgames.com https://www.epicgames.com
  • exploit-db.com https://www.exploit-db.com/exploits/49841
  • vulncheck.com https://www.vulncheck.com/advisories/epic-games-easy-anti-cheat-local-privilege-escalation-via-unquoted-service-path
  • zeroscience.mk https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5652.php

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.