---
id: CVE-2026-111220
title: >-
  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
summary: >-
  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 holdi…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-93
vendor: Netgate
product: pfSense CE
affected:
  - pfsense_ce <= 2.9.0
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T19:17:34.500'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111220'
references:
  - url: 'https://abraxaslabs.tech/research/pfsense-ce-leftovers'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/abraxas/pfsense-pppoe-cron'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/interfaces.inc#L2174-L2214
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/services.inc#L5652-L5660
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/interfaces_ppps_edit.php#L271-L278
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/netgate-pfsense-ce-through-2.9.0-crontab-injection-via-ppp-periodic-reset-ptpid
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
ingestedAt: '2026-10-15T19:25:46.428Z'
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-15T19:49:15.335826Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.