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CVE-2018-7300
CRITICAL
Directory Traversal / Arbitrary File Write / Remote Code Execution in the User.setLanguage method in eQ-3 AG Homematic CCU2 2.29.2 and earlier allows remote attackers to write arbitrary files to the device's filesystem. This vulnerability can be exploited by unauthenticated attackers with access to the web interface.
Published: Feb 22, 2018
Modified: Jun 17, 2026
CWE-22
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (1)
| Vendor | Product | Version |
|---|---|---|
| eq-3 | homematic_ccu2_firmware | * |
GitHub Security Advisory GHSA-64v8-x795-vgp3
Directory Traversal / Arbitrary File Write / Remote Code Execution in the User.setLanguage method...
References (4)
- http://atomic111.github.io/article/homematic-ccu2-filewrite Third Party Advisory
- https://www.exploit-db.com/exploits/44361/ Third Party Advisory, VDB Entry
- http://atomic111.github.io/article/homematic-ccu2-filewrite Third Party Advisory
- https://www.exploit-db.com/exploits/44361/ Third Party Advisory, VDB Entry
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
30.59%
Top 2% most likely to be exploited
Threat Score
48.4 / 100
Data Sources
NVD
EPSS
GitHub