Unquoted Service Path Vulnerability in WIN-PACK PRO by Honeywell
CVE-2021-47866

8.5HIGH

Key Information:

Vendor

Honeywell

Status
Win-pack Pro
Vendor
CVE Published:
21 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47866?

The WIN-PACK PRO 4.8 software contains a significant vulnerability related to an unquoted service path in the GuardTourService. This flaw enables local users to potentially execute arbitrary code with elevated system privileges during the service startup phase. By exploiting this vulnerability, attackers can inject malicious code through the unquoted service path found at C:\Program Files (x86)\WINPAKPRO\WP GuardTour Service.exe, creating a serious security risk for affected systems.

Affected Version(s)

WIN-PACK PRO 4.8

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47866 - Proof of Concept

References

https://www.exploit-db.com/exploits/49690
exploit
https://www.security.honeywell.com/product-repository/winpak
product
https://www.vulncheck.com/advisories/win-pack-pro-guardto...
third-party-advisory

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alan Mondragon
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