9.5 CriticalCWE-78
CVE-2026-65639
WebPros ConfigServer Security & Firewall vulnerability
WebProsConfigServer Security & Firewall
Status
- Not in CISA KEV
- Vendor fix available
Exploit probabilityEPSSchecked 25 Oct
1.4%probability of exploitation in the next 30 days
Higher than 72% of scored CVEs
SeverityCVSS
9.5Critical
Description NVD
OS command injection in the advanced-rule parser of ConfigServer Security & Firewall allows a remote attacker who controls a configured allow/deny feed to execute arbitrary commands as root, due to insufficient validation of feed-supplied rule data. The vulnerability affects versions of the software originally distributed by ConfigServer, as well as versions of the WebPros-maintained fork that contain the vulnerable code. WebPros has addressed the vulnerability in version 16.30. Other forks or independently maintained versions of ConfigServer Security & Firewall (CSF) may also be affected and should be evaluated independently.
Coverage 1 article · 1 outlet
- Critical CSF flaws enable server takeover through remote code executionSecurityOnline · first in our coverage · mentions it in passing