What’s Vulnerable › Vulnerabilities

CVE-2016-20091: Windows Firewall Control 4.8.6.0 Unquoted Service Path Privilege Escalation

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-19 · updated 2026-09-29
• Weakness: CWE-428

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.

Affected products

• Binisoft Windows Firewall Control: 4.8.6.0

References

• http://www.binisoft.org
• https://www.exploit-db.com/exploits/40443
• https://www.vulncheck.com/advisories/windows-firewall-control-unquoted-service-path-privilege-escalation

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