{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47707","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2025-12-05T19:10:29.046Z","datePublished":"2025-12-09T20:39:01.947Z","dateUpdated":"2026-04-07T14:05:35.450Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"COMMAX CVD-Axx DVR","vendor":"COMMAX Co., Ltd.","versions":[{"status":"affected","version":"CVD-AH04 DVR 4.4.1"}]}],"credits":[{"lang":"en","type":"finder","value":"LiquidWorm as Gjoko Krstic of Zero Science Lab"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>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.</p>"}],"value":"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."}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1392","description":"CWE-1392: Use of Default Credentials","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-04-07T14:05:35.450Z"},"references":[{"name":"ExploitDB-50210","tags":["exploit"],"url":"https://www.exploit-db.com/exploits/50210"},{"name":"Official Product Homepage","tags":["product"],"url":"https://www.commax.com"},{"name":"Zero Science Lab Disclosure (ZSL-2021-5667)","tags":["third-party-advisory"],"url":"https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5667.php"},{"name":"VulnCheck Advisory: COMMAX CVD-Axx DVR Weak Default Credentials Stream Disclosure","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/commax-cvd-axx-dvr-weak-default-credentials-stream-disclosure"}],"source":{"discovery":"UNKNOWN"},"title":"COMMAX CVD-Axx DVR Weak Default Credentials Stream Disclosure","x_generator":{"engine":"vulncheck"},"datePublic":"2021-08-16T00:00:00.000Z"},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-10T15:41:03.540626Z","id":"CVE-2021-47707","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-12-10T15:41:18.274Z"}}]}}