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CRITICAL · 9.8

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...

Vulnerability Description

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).

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
Eq-3Homematic Ccu2 Firmware<= 2.51.6
Eq-3Homematic Ccu2-
Eq-3Ccu3 Firmware<= 3.51.6
Eq-3Homematic Ccu3-

Related Weaknesses (CWE)

CWE-276

References

FAQ

What is CVE-2020-12834?

CVE-2020-12834 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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...

How severe is CVE-2020-12834?

CVE-2020-12834 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2020-12834?

Check the references section above for vendor advisories and patch information. Affected products include: Eq-3 Homematic Ccu2 Firmware, Eq-3 Homematic Ccu2, Eq-3 Ccu3 Firmware, Eq-3 Homematic Ccu3.