VULNERABILITY INTELLIGENCE
CVE-2019-10121
CVSS score9.8 CRITICAL
EPSS probability4.63%
CISA KEVNot currently listed
Published2019-07-10
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
eQ-3 HomeMatic CCU2 devices before 2.41.8 and CCU3 devices before 3.43.15 use session IDs for authentication but lack authorization checks. An attacker can obtain a session ID via the user authentication dialogue, aka HMCCU-153. This leads to automatic login as admin.
Weakness classification
- nvd@nist.gov: CWE-306
Primary references
- cve@mitre.org — Broken Link
- cve@mitre.org — Release Notes, Vendor Advisory
- cve@mitre.org — Release Notes, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Broken Link
- af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory