CVE-2026-3611: Missing Authentication for Critical Function

The Honeywell IQ4x building management controller, exposes its full web-based HMI without authentication in its factory-default configuration. With no user module configured, security is disabled by design and the system operates under a System Guest level 100 context, granting read/write...

📄 Honeywell Trend IQ4xx BMS Controller Unauthenticated Remote Web-HMI Control / Lockout

The Honeywell IQ4 Trend IQ4 exposes its full web-based HMI without authentication in its factory-default configuration. With no user module configured, security is disabled by design and the system operates under a System User level 100 context, granting read/write privileges to any party able to...