Vulnerability in Binisoft Windows Firewall Control
CVE-2016-20091
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 · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (5.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Binisoft Windows Firewall Control — versions 4.8.6.0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/40443 (exploit)
- www.binisoft.org (product)
- www.vulncheck.com/advisories/windows-firewall-control-unquoted-service-path-pri… (third-party-advisory)
Frequently asked questions
- What is CVE-2016-20091?
- CVE-2016-20091 is a high-severity vulnerability in Binisoft Windows Firewall Control, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2026-06-19.
- How severe is CVE-2016-20091?
- High severity. CVSS v3 base score is 7.8 out of 10.