CVE-2021-47709
COMMAX Smart Home Ruvie CCTV Bridge DVR Service Config Write / DoS
- State
- Published
- Severity
- 8.7 High
- Published
- Dec 9, 2025
- Updated
- Apr 7, 2026
- Reserved
- Dec 5, 2025
Description
COMMAX Smart Home System allows an unauthenticated attacker to change configuration and cause denial-of-service through the setconf endpoint. Attackers can trigger a denial-of-service scenario by sending a malformed request to the setconf endpoint.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
Weaknesses
- CWE-306 Missing Authentication for Critical Function
Affected Products
| Product | Versions |
|---|---|
Smart Home Ruvie CCTV Bridge DVR ServiceCOMMAX Co., Ltd. |
|
References
- ExploitDB-50209exploit
- Official Product Homepageproduct
- Zero Science Lab Disclosure (ZSL-2021-5666)third-party-advisory
- VulnCheck Advisory: COMMAX Smart Home Ruvie CCTV Bridge DVR Service Config Write / DoSthird-party-advisory
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