CVE-2026-65639
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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.5
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- CWE
- CWE-78
- Published
- 2026-09-10
- Last modified
- 2026-09-10
Affected products
- WebPros ConfigServer Security & Firewall
- ConfigServer ConfigServer Security & Firewall
Weakness type
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