CVE-2016-20091
Windows Firewall Control 4.8.6.0 Unquoted Service Path Privilege Escalation
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.
INFO
Published Date :
June 19, 2026, 2:16 p.m.
Last Modified :
June 19, 2026, 2:16 p.m.
Remotely Exploit :
No
Source :
VulnCheck
Affected Products
The following products are affected by CVE-2016-20091
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 |
Solution
- Quote the Windows Firewall Control service path.
- Restart the affected service.
- Apply vendor patches when available.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2016-20091 vulnerability anywhere in the article.