CVE-2026-65639
- State
- Published
- Severity
- 9.5 Critical
- Published
- Sep 10, 2026
- Updated
- Sep 10, 2026
- Reserved
- Jul 22, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.5 Critical | 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 | hackerone |
Weaknesses
- CWE-78 OS Command Injection
Affected Products
| Product | Versions |
|---|---|
ConfigServer Security & FirewallWebPros |
|
ConfigServer Security & FirewallConfigServer |
|
References
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