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.

Scoring

Severity
HIGH
CVSS base score
8.5
CVSS vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS probability
0.17%
CWE
CWE-428
Published
2026-06-19
Last modified
2026-07-15

Affected products

Weakness type

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