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Fencer Intel
high 8.1

CVE-2017-17691 json

Homeputer CL Studio fur HomeMatic 4.0 Rel 160808 and earlier uses cleartext to exchange the username and password between server and client…

published 8y ago modified 4mo ago also EUVD-2017-8848

cvss
8.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

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.

Patch / fix

  • contronics homeputer_cl_studio_fur_homematic 4.0

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Exploit prediction

1.03% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • compass-security.com https://www.compass-security.com/fileadmin/Datein/Research/Advisories/CSNC-2017-031_homematic.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-522 Insufficiently Protected Credentials

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.