CVE-2019-9584: Eq-3 Homematic CCU2 Firmware

Critical severity, CVSS 9.8. EPSS: 2.7% chance of exploitation in the next 30 days.

eQ-3 Homematic AddOn 'CloudMatic' on CCU2 and CCU3 allows uncontrolled admin access, resulting in the ability to obtain VPN profile details, shutting down the VPN service and to delete the VPN service configuration. This is related to improper access control for all /addons/mh/ pages.

Affected products

• Eq-3 Homematic CCU2 Firmware: up to and including 2.47.15
• Eq-3 Homematic CCU3 Firmware: up to and including 3.47.15

Published 2019-08-14. Last modified 2026-06-17.