CVE-2019-14984: Eq-3 Homematic CCU2 Firmware

High severity, CVSS 8.1. EPSS: 5.8% chance of exploitation in the next 30 days.

eQ-3 Homematic CCU2 and CCU3 with the XML-API through 1.2.0 AddOn installed allow Remote Code Execution by unauthenticated attackers with access to the web interface, because the undocumented addons/xmlapi/exec.cgi script uses CMD_EXEC to execute TCL code from a POST request.

Affected products

• Eq-3 Homematic CCU2 Firmware: up to and including 1.2.0
• Eq-3 Homematic CCU3 Firmware: up to and including 1.2.0

Published 2019-08-13. Last modified 2026-06-17.