eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the E-Mail AddOn through 1.6.8.c…
Priority HIGH 67CWE-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 2.47.20 and CCU3 3.47.18 with the E-Mail AddOn through 1.6.8.c installed allow Remote Code Execution by unauthenticated attackers with access to the web interface via the save.cgi script for payload upload and the testtcl.cgi script for its execution.
Why it matters now
EPSS 0.3384 98th 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 · 18
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hm_email_project:hm_email:1.6.8c:*:*:*:*:*:*:* | 1.6.8c | Vulnerable | Hm Email Project |
| cpe:2.3:h:eq-3:homematic_ccu2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Eq-3 |
| cpe:2.3:o:eq-3:homematic_ccu2_firmware:2.24.20:*:*:*:*:*:*:* | 2.24.20 | 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_ccu3_firmware:3.47.18:*:*:*:*:*:*:* | 3.47.18 | Vulnerable | Eq-3 |
| cpe:2.3:a:hm_email_project:hm_email:1.6.8b:*:*:*:*:*:*:* | 1.6.8b | Vulnerable | Hm Email Project |
| cpe:2.3:a:hm_email_project:hm_email:1.6.8a:*:*:*:*:*:*:* | 1.6.8a | Vulnerable | Hm Email Project |
| cpe:2.3:a:hm_email_project:hm_email:1.6.7c:*:*:*:*:*:*:* | 1.6.7c | Vulnerable | Hm Email Project |
| cpe:2.3:a:hm_email_project:hm_email:1.6.7b:*:*:*:*:*:*:* | 1.6.7b | Vulnerable | Hm Email Project |
| cpe:2.3:a:hm_email_project:hm_email:1.6.7a:*:*:*:*:*:*:* | 1.6.7a | Vulnerable | Hm Email Project |
- cpe:2.3:a:hm_email_project:hm_email:1.6.8c:*:*:*:*:*:*:* Versions 1.6.8c Vulnerable ·Hm Email Project
- cpe:2.3:h:eq-3:homematic_ccu2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eq-3
- cpe:2.3:o:eq-3:homematic_ccu2_firmware:2.24.20:*:*:*:*:*:*:* Versions 2.24.20 Vulnerable ·Eq-3
- cpe:2.3:h:eq-3:homematic_ccu3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Eq-3
- cpe:2.3:o:eq-3:homematic_ccu3_firmware:3.47.18:*:*:*:*:*:*:* Versions 3.47.18 Vulnerable ·Eq-3
- cpe:2.3:a:hm_email_project:hm_email:1.6.8b:*:*:*:*:*:*:* Versions 1.6.8b Vulnerable ·Hm Email Project
- cpe:2.3:a:hm_email_project:hm_email:1.6.8a:*:*:*:*:*:*:* Versions 1.6.8a Vulnerable ·Hm Email Project
- cpe:2.3:a:hm_email_project:hm_email:1.6.7c:*:*:*:*:*:*:* Versions 1.6.7c Vulnerable ·Hm Email Project
- cpe:2.3:a:hm_email_project:hm_email:1.6.7b:*:*:*:*:*:*:* Versions 1.6.7b Vulnerable ·Hm Email Project
- cpe:2.3:a:hm_email_project:hm_email:1.6.7a:*:*:*:*:*:*:* Versions 1.6.7a Vulnerable ·Hm Email Project
Show 8 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hm_email_project:hm_email:1.6.7:*:*:*:*:*:*:* | 1.6.7 | Vulnerable | Hm Email Project |
| cpe:2.3:a:hm_email_project:hm_email:1.6.6:*:*:*:*:*:*:* | 1.6.6 | Vulnerable | Hm Email Project |
| cpe:2.3:a:hm_email_project:hm_email:1.6.5:*:*:*:*:*:*:* | 1.6.5 | Vulnerable | Hm Email Project |
| cpe:2.3:a:hm_email_project:hm_email:1.6.4:*:*:*:*:*:*:* | 1.6.4 | Vulnerable | Hm Email Project |
| cpe:2.3:a:hm_email_project:hm_email:1.6.3:*:*:*:*:*:*:* | 1.6.3 | Vulnerable | Hm Email Project |
| cpe:2.3:a:hm_email_project:hm_email:1.6.2:*:*:*:*:*:*:* | 1.6.2 | Vulnerable | Hm Email Project |
| cpe:2.3:a:hm_email_project:hm_email:1.6.0:*:*:*:*:*:*:* | 1.6.0 | Vulnerable | Hm Email Project |
| cpe:2.3:a:hm_email_project:hm_email:1.6.8:*:*:*:*:*:*:* | 1.6.8 | Vulnerable | Hm Email Project |
- cpe:2.3:a:hm_email_project:hm_email:1.6.7:*:*:*:*:*:*:* Versions 1.6.7 Vulnerable ·Hm Email Project
- cpe:2.3:a:hm_email_project:hm_email:1.6.6:*:*:*:*:*:*:* Versions 1.6.6 Vulnerable ·Hm Email Project
- cpe:2.3:a:hm_email_project:hm_email:1.6.5:*:*:*:*:*:*:* Versions 1.6.5 Vulnerable ·Hm Email Project
- cpe:2.3:a:hm_email_project:hm_email:1.6.4:*:*:*:*:*:*:* Versions 1.6.4 Vulnerable ·Hm Email Project
- cpe:2.3:a:hm_email_project:hm_email:1.6.3:*:*:*:*:*:*:* Versions 1.6.3 Vulnerable ·Hm Email Project
- cpe:2.3:a:hm_email_project:hm_email:1.6.2:*:*:*:*:*:*:* Versions 1.6.2 Vulnerable ·Hm Email Project
- cpe:2.3:a:hm_email_project:hm_email:1.6.0:*:*:*:*:*:*:* Versions 1.6.0 Vulnerable ·Hm Email Project
- cpe:2.3:a:hm_email_project:hm_email:1.6.8:*:*:*:*:*:*:* Versions 1.6.8 Vulnerable ·Hm Email Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-18938
- 2026-10-03 Alias added: GHSA-x4cw-9v3q-3qv3
References
Sources
- CVE-2019-18938 · CVE Program
- CVE-2019-18938 · NVD
- FIRST EPSS
- GHSA-x4cw-9v3q-3qv3 · GitHub Advisory Database · CC BY 4.0
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