What is CVE-2019-15850?

CVE-2019-15850 is a high-severity vulnerability in Eq-3 Homematic Ccu3, classified under Missing Authorization. CVSS score: 8.8/10. Published 2019-10-17.

How severe is CVE-2019-15850?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Eq-3 Homematic Ccu3

CVE-2019-15850

eQ-3 HomeMatic CCU3 firmware version 3.41.11 allows Remote Code Execution in the ReGa.runScript method. An authenticated attacker can easily execute code and compromise the system.

Vulnerability class: Broken Access Control

Published 2019-10-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.156 (96.7th percentile), scored 2026-10-01.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.156 · newest: 0.156 · change: 0.000

Affected products

Eq-3 Homematic Ccu3
Eq-3 Homematic Ccu3 Firmware — versions 3.41.11

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

www.eq-3.com/products/homematic.html (Vendor Advisory)
noskill1337.github.io/homematic-ccu3-remote-code-execution (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-15850?: CVE-2019-15850 is a high-severity vulnerability in Eq-3 Homematic Ccu3, classified under Missing Authorization. CVSS score: 8.8/10. Published 2019-10-17.
How severe is CVE-2019-15850?: High severity. CVSS v3 base score is 8.8 out of 10.