Auth bypass in Eq-3 Homematic_ccu2
CVE-2019-18937
eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the Script Parser AddOn through 1.8 installed allow Remote Code Execution by unauthenticated attackers with access to the web interface via the exec.cgi script, which executes TCL script co…
Vulnerability class: Broken Authentication
EPSS: 0.338 (98.2th 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
- Eq-3 Homematic_ccu2
- Eq-3 Homematic_ccu2_firmware — versions 2.47.20
- Eq-3 Homematic_ccu3
- Eq-3 Homematic_ccu3_firmware — versions 3.47.18
- Scriptparser_project Scriptparser — versions 1.8, 1.7, 1.6
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-18937?
- CVE-2019-18937 is a critical-severity vulnerability in Eq-3 Homematic_ccu2, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2019-11-14.
- How severe is CVE-2019-18937?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-18937 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.