High severity · published Jan 21, 2026
CVE-2021-47866
WIN-PACK PRO 4.8 - 'GuardTourService' Unquoted Service Path
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WP
WIN-PACK PRO · Honeywell
4.8 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-47866
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-47866
www.exploit-db.com
https://www.exploit-db.com/exploits/49690
www.security.honeywell.com
https://www.security.honeywell.com/product-repository/winpak
www.vulncheck.com
https://www.vulncheck.com/advisories/win-pack-pro-guardtourservice-unquoted-service-path
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