CVE-2019-15849 json
eQ-3 HomeMatic CCU3 firmware 3.41.11 allows session fixation.
published 2019-10-17 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-6765
- cvss
- 7.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
eQ-3 HomeMatic CCU3 firmware 3.41.11 allows session fixation. An attacker can create session IDs and send them to the victim. After the victim logs in to the session, the attacker can use that session. The attacker could create SSH logins after a valid session and easily compromise the system.
Exploit prediction
0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- noskill1337.github.io https://noskill1337.github.io/homematic-ccu3-session-fixation referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N |
| NVD | 2.0 | 4.9 | AV:N/AC:M/Au:S/C:P/I:P/A:N |
Classification
- Weakness
-
- CWE-384 Session Fixation
References
-
noskill1337.github.io
/homematic-ccu3-session-fixation
exploit, mitigation, third-party-advisory
-
eq-3.com
/products/homematic.html
vendor-advisory
Sources
- CVE List CVE-2019-15849
- NVD CVE-2019-15849
Fencer Vulns 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.