CVE-2021-47862 - CVE House
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Status published High CVE-2021-47862

Hi-Rez Studios 5.1.6.3 - 'HiPatchService' Unquoted Service Path

Vulnerability Description

Hi-Rez Studios 5.1.6.3 contains an unquoted service path vulnerability in the HiPatchService that allows local attackers to execute code with elevated privileges. Attackers can exploit the unquoted path during system startup or reboot to inject and run malicious executables with LocalSystem permissions.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Ekrem Can Kök

References

Affected Vendor

HI-REZ STUDIOS

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Affected Software

HiPatchService
Vulnerable Versions:
5.1.6.3

Timeline

Official Publish: January 21st, 2026
Last Modified: January 22nd, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-428

MITRE ATT&CK TTPs

T1574 Hijack Execution Flow
Privilege Escalation
T1036 Masquerading
Defense Evasion
T1543 Create or Modify System Process
Persistence
T1059 Command and Scripting Interpreter
Execution
T1569 System Services
Execution