Vulnerability · Published Jan 21, 2026 · Assigned by VulnCheck
CVE-2021-47862Hi-Rez Studios 5.1.6.3 - 'HiPatchService' Unquoted Service Path
High 7.8
In plain English
A high-severity security flaw in HiPatchService from HI-REZ STUDIOS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 4% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 95.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| HI-REZ STUDIOS | HiPatchService | 5.1.6.3 |
Weakness: CWE-428 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- ExploitDB-49701 exploit
- Hi-Rez Studios Official Homepage product
- VulnCheck Advisory: Hi-Rez Studios 5.1.6.3 - 'HiPatchService' Unquoted Service Path third-party-advisory