PatchTheCVECVE-2019-9585: eQ-3 Homematic CCU2 prior to 2.47.10 and CCU3 prior to 3.47.10 JSON API has Improper Access Control for Interf
CVE-2019-9585 is a critical-severity flaw (CVSS 9.8) affecting homematic ccu2 firmware, homematic ccu3 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
eQ-3 Homematic CCU2 prior to 2.47.10 and CCU3 prior to 3.47.10 JSON API has Improper Access Control for Interface.***Metadata related operations, resulting in the ability to read, set and deletion of Metadata.
Why this priority
- Critical severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.7% (top 14%) |
| CISA exploited list | No |
| Weakness | CWE-306 |
| Published | 2019-08-14 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2019-9585?
homematic ccu2 firmware: upgrade to 2.47.10; homematic ccu3 firmware: upgrade to 3.47.10. Exact commands for each OS are on this page.
Is CVE-2019-9585 being exploited?
CVE-2019-9585 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2019-9585 affect?
CVE-2019-9585 affects homematic ccu2 firmware, homematic ccu3 firmware. Severity is critical (CVSS 9.8). eQ-3 Homematic CCU2 prior to 2.47.10 and CCU3 prior to 3.47.10 JSON API has Improper Access Control for Interface.***Metadata related operations, resulting in the ability to read, set and deletion of Metadata.
How urgent is CVE-2019-9585?
Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action
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