Skip to main content

Configserver Security Firewall

2 CVEs product

Monthly

CVE-2026-65639 Sep 10, 16:24 CRITICAL PATCH Act Now

Root-level OS command injection in ConfigServer Security & Firewall (CSF) lets a remote attacker who controls a configured allow/deny feed inject arbitrary shell commands through the advanced-rule parser, which executes them as root. The affected code exists both in the original ConfigServer distribution and in the WebPros-maintained fork; WebPros fixed it in version 16.30. There is no public exploit identified at time of analysis and no CISA KEV listing, so this is a high-severity but not yet demonstrated-exploited issue.

Command Injection Configserver Security Firewall Webpros
NVD
CVSS 4.0
9.5
EPSS
1.6%
CVE-2026-65638 Sep 10, 16:24 CRITICAL PATCH Act Now

Remote code execution in ConfigServer Security & Firewall (CSF) allows an unauthenticated attacker to run arbitrary OS commands as the CSF service account through shell command injection stemming from improperly escaped request URLs. It affects the original ConfigServer distribution and the WebPros-maintained fork containing the vulnerable code, and is fixed in WebPros version 16.30. No public exploit has been identified at time of analysis, but because CSF's login-failure daemon typically runs with root-level privileges, successful exploitation grants full server control.

Command Injection Configserver Security Firewall Webpros
NVD
CVSS 4.0
9.2
EPSS
3.2%
EPSS 2% CVSS 9.5
CRITICAL PATCH Act Now

Root-level OS command injection in ConfigServer Security & Firewall (CSF) lets a remote attacker who controls a configured allow/deny feed inject arbitrary shell commands through the advanced-rule parser, which executes them as root. The affected code exists both in the original ConfigServer distribution and in the WebPros-maintained fork; WebPros fixed it in version 16.30. There is no public exploit identified at time of analysis and no CISA KEV listing, so this is a high-severity but not yet demonstrated-exploited issue.

Command Injection Configserver Security Firewall Webpros
NVD
EPSS 3% CVSS 9.2
CRITICAL PATCH Act Now

Remote code execution in ConfigServer Security & Firewall (CSF) allows an unauthenticated attacker to run arbitrary OS commands as the CSF service account through shell command injection stemming from improperly escaped request URLs. It affects the original ConfigServer distribution and the WebPros-maintained fork containing the vulnerable code, and is fixed in WebPros version 16.30. No public exploit has been identified at time of analysis, but because CSF's login-failure daemon typically runs with root-level privileges, successful exploitation grants full server control.

Command Injection Configserver Security Firewall Webpros
NVD

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy