---
cve: "CVE-2026-65639"
severity: "CRITICAL"
cvss: 9.5
epss: "1.6%"
vendor: "WebPros"
kev: false
exploited: false
published: "2026-09-10 16:24:52"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T14:46:57+02:00"
---

# CVE-2026-65639

> 9.5 CRITICAL

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Referenzen

- <https://support.cpanel.net/hc/en-us/articles/43387923160343-Security-CVE-2026-65639-CSF-Security-Release>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-65639) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_