pfSense CE <2.9.0 Crontab Injection via interfaces_ppps_edit.php
CVE-2026-111220 Published on October 15, 2026
Netgate pfSense CE through 2.9.0 Crontab Injection via PPP Periodic Reset ptpid
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.
Vulnerability Analysis
CVE-2026-111220 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2026-111220. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a CRLF Injection Vulnerability?
The software 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.
CVE-2026-111220 has been classified to as a CRLF Injection vulnerability or weakness.
Products Associated with CVE-2026-111220
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Affected Versions
Netgate pfSense CE:- Before and including 2.9.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.