CVE-2021-47709 Details
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.
A vulnerability in the COMMAX Smart Home System's CCTV Bridge DVR Service allows an unauthenticated attacker to change configuration settings and cause a denial-of-service condition. This is achieved by sending a malformed request to the 'setconf' endpoint, which is responsible for handling configuration changes. The vulnerability arises from missing authentication for critical functions, enabling unauthorized users to manipulate device settings and disrupt service availability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Dec 9, 2025CISA-ADP
Assessed Dec 10, 2025References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-306 | Missing Authentication for Critical Function | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| COMMAX Smart Home Ruvie CCTV Bridge DVR Service | All versions |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Dec 9, 2025 | New CVE Received | [email protected] |