What is CVE-2021-47862?

CVE-2021-47862 is a high-severity vulnerability in Hi-Rez Studios Hipatchservice, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2026-01-21.

How severe is CVE-2021-47862?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Hi-Rez Studios Hipatchservice

CVE-2021-47862

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.

EPSS: 0.001 (2.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Hi-rez Studios Hipatchservice — versions 5.1.6.3

Weakness classification (CWE)

CWE-428 — Unquoted Search Path or Element

References

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

Frequently asked questions

What is CVE-2021-47862?: CVE-2021-47862 is a high-severity vulnerability in Hi-Rez Studios Hipatchservice, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2026-01-21.
How severe is CVE-2021-47862?: High severity. CVSS v3 base score is 7.8 out of 10.