CVE-2025-41756: Mbs-Solutions Universal Bacnet Router Firmware

High severity, CVSS 8.1. EPSS: 0.3% chance of exploitation in the next 30 days.

A low-privileged remote attacker can exploit the ubr-editfile method in wwwubr.cgi, an undocumented and unused API endpoint to write arbitrary files on the system.

Affected products

• Mbs-Solutions Universal Bacnet Router Firmware: before 6.0.1.0 (fixed in 6.0.1.0)

Published 2026-03-09. Last modified 2026-06-17.