What is CVE-2019-18938?

CVE-2019-18938 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-2019-18938?

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

Auth bypass in Eq-3 Homematic_ccu2

CVE-2019-18938

eQ-3 Homematic CCU2 2.47.20 and CCU3 3.47.18 with the E-Mail AddOn through 1.6.8.c installed allow Remote Code Execution by unauthenticated attackers with access to the web interface via the save.cgi script for payload upload and the testt…

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 2.24.20
Eq-3 Homematic_ccu3
Eq-3 Homematic_ccu3_firmware — versions 3.47.18
Hm_email_project Hm_email — versions 1.6.8c, 1.6.8b, 1.6.8a
N/a — versions n/a

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

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

Frequently asked questions

What is CVE-2019-18938?: CVE-2019-18938 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-2019-18938?: Critical severity. CVSS v3 base score is 9.8 out of 10.