CVE-2021-47707
Critical
Description
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.
SeverityCritical
CVSS9.3
Exploit probability—
ProductCOMMAX CVD-Axx DVR
PublishedDec 9, 2025
First seenDec 9, 2025
Weakness typeCWE-1392CWE-1392
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| COMMAX Co., Ltd. COMMAX CVD-Axx DVR | CVD-AH04 DVR 4.4.1 | — |
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