COMMAX CVD-Axx DVR Weak Default Credentials Stream Disclosure
Priority HIGH 73CWE-1392Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
COMMAX CVD-Axx DVR 5.1.4 contains weak default administrative credentials that allow remote password attacks and disclose RTSP stream. Attackers can exploit this by sending a POST request with the 'passkey' parameter set to '1234', allowing them to access the web control panel.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00369 30th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| COMMAX Co., Ltd. | COMMAX CVD-Axx DVR | CVD-AH04 DVR 4.4.1 | — | No fix listed | CNA |
- COMMAX CVD-Axx DVR VendorCOMMAX Co., Ltd. Affected CVD-AH04 DVR 4.4.1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-47707
- 2026-10-03 Alias added: GHSA-q6gq-vxg6-9m9p
References
Exploit 1
Other 1
More COMMAX Co., Ltd. vulnerabilities
- TI-2021-22325 COMMAX Smart Home IoT Control System SQL Injection Authentication Bypass CVSS 4.0CRITICAL 9.3
- TI-2021-22336 CNC_Ctrl DllUnregisterServer f5501 Access Violation CVSS 4.0HIGH 8.7
- TI-2021-22326 COMMAX Smart Home Ruvie CCTV Bridge DVR Service Config Write / DoS CVSS 4.0HIGH 8.7
- TI-2021-22360 COMMAX Biometric Access Control System 1.0.0 Reflected XSS via Cookie Parameters CVSS 4.0MEDIUM 5.1
- TI-2019-13818 Commax WallPad Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
- TI-2021-22327 COMMAX Smart Home Ruvie CCTV Bridge DVR Service RTSP Credentials Disclosure CVSS 4.0HIGH 8.7
Sources
- CVE-2021-47707 · CVE Program
- CVE-2021-47707 · NVD
- FIRST EPSS
- GHSA-q6gq-vxg6-9m9p · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences