CVE-2019-9727: Eq-3 CCU3 Firmware

High severity, CVSS 7.5. EPSS: 2.2% chance of exploitation in the next 30 days.

Unauthenticated password hash disclosure in the User.getUserPWD method in eQ-3 AG Homematic CCU3 3.43.15 and earlier allows remote attackers to retrieve the GUI password hashes of GUI users. This vulnerability can be exploited by unauthenticated attackers with access to the web interface.

Affected products

• Eq-3 CCU3 Firmware: up to and including 3.43.15

Published 2019-05-13. Last modified 2026-06-17.