---
cve: "CVE-2026-111220"
severity: "HIGH"
cvss: 8.6
epss: ""
vendor: "Netgate"
kev: false
exploited: false
published: "2026-10-15 19:17:34"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-23T17:23:52+02:00"
---

# CVE-2026-111220

> 8.6 HIGH · 🧪 PoC

## Beschreibung

pfSense CE through 2.9.0 contains a crontab injection vulnerability in interfaces_ppps_edit.php that allows authenticated users to execute commands as root by injecting newlines into the ptpid or reset hour/minute fields. Attackers holding the 'WebCfg - Interfaces: PPPs: Edit' privilege can submit crafted POST values that configure_cron() writes unescaped into /etc/crontab, running arbitrary root commands on schedule.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-10-15 19:49:22
- CNA-CVSS: **8.6** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
```

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

## Schwachstellen-Klasse

- **CWE-93** — Improper Neutralization of CRLF Sequences ('CRLF Injection')
  The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

## Angriffsmuster (CAPEC)

- [CAPEC-15 — Command Delimiters](https://capec.mitre.org/data/definitions/15.html) _(Severity: High)_
- [CAPEC-81 — Web Server Logs Tampering](https://capec.mitre.org/data/definitions/81.html) _(Severity: High)_

## BSI-Hinweise (deutsch)

- [Netgate pfSense: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-3983) — _BSI-Einstufung: mittel_
  Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Netgate pfSense ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuführen und um auf Dateien zuzugreifen.

## Referenzen

- <https://github.com/abraxas/pfsense-pppoe-cron>
- <https://abraxaslabs.tech/research/pfsense-ce-leftovers>
- <https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/interfaces.inc#L2174-L2214>
- <https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/interfaces_ppps_edit.php#L271-L278>
- <https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/services.inc#L5652-L5660>
- <https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-crontab-injection-via-ppp-periodic-reset-ptpid>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-111220/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_