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Description

Windows Firewall Control 4.8.6.0 contains an unquoted service path vulnerability that allows local attackers to escalate privileges by inserting malicious executables in the service path. Attackers can place executable files in unquoted path directories that the wfcs.exe service will execute with LocalSystem privileges upon service restart or system reboot.

PUBLISHED Reserved 2026-06-19 | Published 2026-06-19 | Updated 2026-06-22 | Assigner VulnCheck




HIGH: 8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

Unquoted Search Path or Element

Product status

4.8.6.0
affected

Credits

zaeek@protonmail.com finder

References

www.exploit-db.com/exploits/40443 (ExploitDB-40443) exploit

www.binisoft.org (Official Product Homepage) product

www.vulncheck.com/...uoted-service-path-privilege-escalation (VulnCheck Advisory: Windows Firewall Control 4.8.6.0 Unquoted Service Path Privilege Escalation) third-party-advisory

cve.org (CVE-2016-20091)

nvd.nist.gov (CVE-2016-20091)

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