What’s Vulnerable › Vulnerabilities
CVE-2019-10120
- Severity: high (CVSS 8.8 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2019-07-10 · updated 2026-06-17
- Weakness: CWE-384
Description
On eQ-3 HomeMatic CCU2 devices before 2.41.8 and CCU3 devices before 3.43.16, automatic login configuration (aka setAutoLogin) can be achieved by continuing to use a session ID after a logout, aka HMCCU-154.
Affected products
- Eq-3 Ccu2 Firmware: before 2.41.8 — fixed in 2.41.8
- Eq-3 Ccu3 Firmware: before 3.43.16 — fixed in 3.43.16
How to fix
Upgrade to a fixed version: Eq-3 Ccu2 Firmware 2.41.8; Eq-3 Ccu3 Firmware 3.43.16. Check the vendor advisory for mitigations.
References
- https://www.eq-3.de/Downloads/Software/CCU3-Firmware/CCU3-3.43.16/CCU3-Changelog.3.43.16.pdf
- https://www.eq-3.de/Downloads/Software/HM-CCU2-Firmware_Updates/HM-CCU-2.41.9/HM-CCU2-Changelog.2.41.9.pdf
- https://www.eq-3.de/Downloads/Software/CCU3-Firmware/CCU3-3.43.16/CCU3-Changelog.3.43.16.pdf
- https://www.eq-3.de/Downloads/Software/HM-CCU2-Firmware_Updates/HM-CCU-2.41.9/HM-CCU2-Changelog.2.41.9.pdf
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