CVE-2026-111220: netgate pfsense ce CRLF Injection

Vulnerability summary

CVE-2026-111220 is a high (CVSS 8.6) CRLF Injection vulnerability in netgate pfsense ce. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 53.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 15-10-2026
   PublishedVulnerability first disclosed.
2. 15-10-2026
   Last modifiedVulnerability information updated.

Description

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.

• CWE-93Improper 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.