eQ-3 Homematic CCU2 before 2.47.18 and CCU3 before 3.47.18 allow Remote Code Execution by…
Priority MEDIUM 53CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-306.
Summary
eQ-3 Homematic CCU2 before 2.47.18 and CCU3 before 3.47.18 allow Remote Code Execution by unauthenticated attackers with access to the web interface via an HTTP POST request to certain URLs related to the ReGa core process.
Why it matters now
EPSS 0.08744 95th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:eq-3:homematic_ccu2_firmware:*:*:*:*:*:*:*:* | before 2.47.18 | Vulnerable | Eq-3 |
| cpe:2.3:h:eq-3:homematic_ccu2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eq-3 |
| cpe:2.3:o:eq-3:homematic_ccu3_firmware:*:*:*:*:*:*:*:* | before 3.47.18 | Vulnerable | Eq-3 |
| cpe:2.3:h:eq-3:homematic_ccu3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eq-3 |
- cpe:2.3:o:eq-3:homematic_ccu2_firmware:*:*:*:*:*:*:*:* Versions before 2.47.18 Vulnerable ·Eq-3
- cpe:2.3:h:eq-3:homematic_ccu2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eq-3
- cpe:2.3:o:eq-3:homematic_ccu3_firmware:*:*:*:*:*:*:*:* Versions before 3.47.18 Vulnerable ·Eq-3
- cpe:2.3:h:eq-3:homematic_ccu3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eq-3
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-16199
- 2026-10-03 Alias added: GHSA-mhvr-v5c8-rw24
References
More Eq-3 Homematic Ccu2 Firmware vulnerabilities
- TI-2021-12636 A Remote Code Execution (RCE) vulnerability in the WebUI component of the eQ-3 HomeMatic… CVSS 3.1CRITICAL 10.0
- TI-2019-13655 eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the HM-Print AddOn through 1.2a… CVSS 3.1CRITICAL 9.8
- TI-2019-13654 eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the E-Mail AddOn through 1.6.8.c… CVSS 3.1CRITICAL 9.8
- TI-2019-13653 eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the Script Parser AddOn through 1.8… CVSS 3.1CRITICAL 9.8
- TI-2018-05294 Directory Traversal / Arbitrary File Write / Remote Code Execution in the… CVSS 3.1CRITICAL 9.8
- TI-2020-10201 eQ-3 Homematic Central Control Unit (CCU)2 through 2.51.6 and CCU3 through 3.51.6 allow… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-16199 · CVE Program
- CVE-2019-16199 · NVD
- FIRST EPSS
- GHSA-mhvr-v5c8-rw24 · GitHub Advisory Database · CC BY 4.0
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