CVE-2021-47707
COMMAX CVD-Axx DVR Weak Default Credentials Stream Disclosure
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.
INFO
Published Date :
Dec. 9, 2025, 9:15 p.m.
Last Modified :
Dec. 9, 2025, 9:15 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2021-47707
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | CRITICAL | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | CRITICAL | [email protected] |
Solution
- Change default passwords immediately.
- Implement strong authentication mechanisms.
- Restrict access to RTSP streams.
- Apply vendor security updates.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47707.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47707 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47707
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47707 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47707 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Dec. 09, 2025
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-1392 Added Reference https://www.commax.com Added Reference https://www.exploit-db.com/exploits/50210 Added Reference https://www.vulncheck.com/advisories/commax-cvd-axx-dvr-weak-default-credentials-stream-disclosure Added Reference https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5667.php