CVE-2021-47707

UNKNOWN 0.0

COMMAX CVD-Axx DVR Weak Default Credentials Stream Disclosure

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-1392
Vendor	commax co., ltd.
Product	commax cvd-axx dvr
Published	Dec 9, 2025
Last Updated	Apr 7, 2026

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Affected Versions

COMMAX Co., Ltd. / COMMAX CVD-Axx DVR

CVD-AH04 DVR 4.4.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/50210 commax.com: https://www.commax.com zeroscience.mk: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5667.php vulncheck.com: https://www.vulncheck.com/advisories/commax-cvd-axx-dvr-weak-default-credentials-stream-disclosure

Credits

LiquidWorm as Gjoko Krstic of Zero Science Lab