CVE-2019-11816: Netgate Pfsense

High severity, CVSS 7.2. EPSS: 3.2% chance of exploitation in the next 30 days.

Incorrect access control in the WebUI in OPNsense before version 19.1.8, and pfsense before 2.4.4-p3 allows remote authenticated users to escalate privileges to administrator via a specially crafted request.

Affected products

• Netgate Pfsense: up to and including 2.4.4; version 2.4.4 only
• Opnsense Opnsense: before 19.1.8 (fixed in 19.1.8)

Published 2019-05-20. Last modified 2026-06-17.