ZoomEye finds 446,010 pfSense fingerprint matches exposed online

ZoomEye recorded 446,010 matches for the app="pfSense" fingerprint as of September 23, 2026. The figure covers internet-reachable management interfaces of the open-source firewall, whose configuration holds network rules, certificates and credentials.

• The app="pfSense" query returned 446,010 matches on September 23, 2026
• pfSense's web interface defaults to port 443, the same port used by its VPN
• Its configuration stores firewall rules, NAT, DHCP, certificates and credentials
• Interface access enables diagnostics, packet capture and shell command execution