What’s Vulnerable › Vulnerabilities

CVE-2017-17691

• Severity: high (CVSS 8.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-09-07 · updated 2026-06-17
• Weakness: CWE-522

Description

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

How to fix

Upgrade to a fixed version: Contronics Homeputer Cl Studio Fur Homematic 4.0. Check the vendor advisory for mitigations.

References

• https://www.compass-security.com/fileadmin/Datein/Research/Advisories/CSNC-2017-031_homematic.txt
• https://www.compass-security.com/fileadmin/Datein/Research/Advisories/CSNC-2017-031_homematic.txt

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