CVE-2019-14984
eQ-3 Homematic CCU2 and CCU3 with the XML-API through 1.2.0 AddOn installed allow Remote Code Execution by unauthenticated attackers with access to the web interface, because the undocumented addons/xmlapi/exec.cgi script uses CMD_EXEC to execute TCL…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.75%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
eQ-3 Homematic CCU2 and CCU3 with the XML-API through 1.2.0 AddOn installed allow Remote Code Execution by unauthenticated attackers with access to the web interface, because the undocumented addons/xmlapi/exec.cgi script uses CMD_EXEC to execute TCL code from a POST request.
- CVSS 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.75% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Affected
- eq-3/homematic ccu2 firmware · eq-3/homematic ccu3 firmware
- Source
- cve@mitre.org
EPSS moved from 7.3% on 21 September 2026 to 5.8% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://psytester.github.io/CVE-2019-14984/Exploit, Third Party Advisory
- https://psytester.github.io/CVE-2019-14984/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.