What is CVE-2020-12834?

CVE-2020-12834 is a critical-severity vulnerability in Eq-3 Ccu3 Firmware, classified under Incorrect Default Permissions. CVSS score: 9.8/10. Published 2020-05-15.

How severe is CVE-2020-12834?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Eq-3 Ccu3 Firmware

CVE-2020-12834

eQ-3 Homematic Central Control Unit (CCU)2 through 2.51.6 and CCU3 through 3.51.6 allow Remote Code Execution in the JSON API Method ReGa.runScript, by unauthenticated attackers with access to the web interface, due to the default auto-login feature being enabled during first-time setup (or factory reset).

EPSS: 0.111 (95.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-12834?: CVE-2020-12834 is a critical-severity vulnerability in Eq-3 Ccu3 Firmware, classified under Incorrect Default Permissions. CVSS score: 9.8/10. Published 2020-05-15.
How severe is CVE-2020-12834?: Critical severity. CVSS v3 base score is 9.8 out of 10.