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.

Score

CVSS 4.0 8.5 High

Status

Deferred - disclosure@vulncheck.com

Published

2026-06-19

Last modified

2026-07-15

Weaknesses

CWE-428

Affected products

• Windows Firewall (Microsoft)

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