CVE-2017-17691: Contronics Homeputer Cl Studio Fur Homematic

High severity, CVSS 8.1. EPSS: 1% chance of exploitation in the next 30 days.

Homeputer CL Studio fur HomeMatic 4.0 Rel 160808 and earlier uses cleartext to exchange the username and password between server and client instances, which allows remote attackers to obtain sensitive information via a man in the middle attack.

Affected products

• Contronics Homeputer Cl Studio Fur Homematic: before 4.0 (fixed in 4.0)

Published 2018-09-07. Last modified 2026-06-17.