CVE-2021-47862

HIGH

Hi-Rez Studios 5.1.6.3 - Code Injection

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47862. PoCs published by Ekrem Can Kök.

AI-analyzed exploit summary This is a writeup describing an unquoted service path vulnerability in Hi-Rez Studios' HiPatchService. The vulnerability could allow local privilege escalation by exploiting the service path to execute arbitrary code with elevated privileges during system startup or reboot.

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.

Exploits (1)

exploitdb WRITEUP
by Ekrem Can Kök · textlocalwindows
https://www.exploit-db.com/exploits/49701

This is a writeup describing an unquoted service path vulnerability in Hi-Rez Studios' HiPatchService. The vulnerability could allow local privilege escalation by exploiting the service path to execute arbitrary code with elevated privileges during system startup or reboot.

Classification
Writeup 90%
Attack Type
Lpe
Complexity
Trivial
Reliability
Reliable
Target: Hi-Rez Studios HiPatchService 5.1.6.3
Auth required
Prerequisites: Local access to the system · Ability to write to the directory structure where the unquoted path is located
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/49701
Various Sources product
https://www.hirezstudios.com

Scores

CVSS v3 7.8
EPSS 0.0013
EPSS Percentile 2.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-428
Status published
Products (1)
HI-REZ STUDIOS/HiPatchService 5.1.6.3
Published Jan 21, 2026
Tracked Since Feb 18, 2026