What is CVE-2021-47866?

CVE-2021-47866 is a high-severity vulnerability in Honeywell Win-Pack Pro, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2026-01-21.

How severe is CVE-2021-47866?

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

Vulnerability in Honeywell Win-Pack Pro

CVE-2021-47866

WIN-PACK PRO 4.8 contains an unquoted service path vulnerability in the GuardTourService that allows local users to potentially execute code with elevated system privileges. Attackers can exploit the unquoted path in C:\Program Files <x86>\WINPAKPRO\WP GuardTour Service.exe to inject malicious code that would execute during service startup.

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

Honeywell Win-pack Pro — versions 4.8

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-2021-47866?: CVE-2021-47866 is a high-severity vulnerability in Honeywell Win-Pack Pro, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2026-01-21.
How severe is CVE-2021-47866?: High severity. CVSS v3 base score is 7.8 out of 10.