{"id":"CVE-2021-40407","aliases":["EUVD-2021-27584","GHSA-3w42-xvwv-qc2q"],"status":"published","title":"An OS command injection vulnerability exists in the device network settings functionality of...","description":"An OS command injection vulnerability exists in the device network settings functionality of reolink RLC-410W v3.0.0.136_20121102. At [1] or [2], based on DDNS type, the ddns-\u003edomain variable, that has the value of the domain parameter provided through the SetDdns API, is not validated properly. This would lead to an OS command injection. An attacker can send an HTTP request to trigger this vulnerability.","severity":{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-06","score":0.47635,"percentile":0.98853,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":false,"fix_available":false},"cwes":["CWE-78"],"published":"2022-01-28T19:10:13Z","modified":"2026-06-17T04:06:52Z","kev":{"date_added":"2024-12-18","due_date":"2025-01-08","required_action":"The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization if a current mitigation is unavailable.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2024-12-18"},{"source":"kev","since":"2024-12-18"}],"products":[{"vendor":"reolink","product":"rlc-410w ip camera"},{"vendor":"reolink","product":"rlc-410w_firmware"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1424","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40407","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40407"},{"url":"https://github.com/advisories/GHSA-3w42-xvwv-qc2q"}],"sources":{"cve":[{"id":"CVE-2021-40407","description":"An OS command injection vulnerability exists in the device network settings functionality of reolink RLC-410W v3.0.0.136_20121102. At [1] or [2], based on DDNS type, the ddns-\u003edomain variable, that has the value of the domain parameter provided through the SetDdns API, is not validated properly. This would lead to an OS command injection. An attacker can send an HTTP request to trigger this vulnerability.","status":"published","published":"2022-01-28T19:10:13Z","modified":"2025-10-21T23:15:48.39Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:33:01.852999Z"}],"euvd":[{"id":"EUVD-2021-27584","description":"An OS command injection vulnerability exists in the device network settings functionality of reolink RLC-410W v3.0.0.136_20121102. At [1] or [2], based on DDNS type, the ddns-\u003edomain variable, that has the value of the domain parameter provided through the SetDdns API, is not validated properly. This would lead to an OS command injection. An attacker can send an HTTP request to trigger this vulnerability.","status":"published","published":"2022-01-28T19:10:13Z","modified":"2025-10-21T23:15:48Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"exploited_since":"2024-12-18","updated_at":"2026-11-02T20:31:25.901288Z"}],"ghsa":[{"id":"GHSA-3w42-xvwv-qc2q","title":"An OS command injection vulnerability exists in the device network settings functionality of...","description":"An OS command injection vulnerability exists in the device network settings functionality of reolink RLC-410W v3.0.0.136_20121102. At [1] or [2], based on DDNS type, the ddns-\u003edomain variable, that has the value of the domain parameter provided through the SetDdns API, is not validated properly. This would lead to an OS command injection. An attacker can send an HTTP request to trigger this vulnerability.","status":"published","published":"2022-01-29T00:00:43Z","modified":"2025-10-22T00:33:34Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T15:04:08.198655Z"}],"kev":[{"id":"CVE-2021-40407","title":"Reolink RLC-410W IP Camera OS Command Injection Vulnerability ","description":"Reolink RLC-410W IP cameras contain an authenticated OS command injection vulnerability in the device network settings functionality.","cwes":["CWE-78"],"kev":{"date_added":"2024-12-18","due_date":"2025-01-08","required_action":"The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization if a current mitigation is unavailable.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:16.234141Z"}],"nvd":[{"id":"CVE-2021-40407","description":"An OS command injection vulnerability exists in the device network settings functionality of reolink RLC-410W v3.0.0.136_20121102. At [1] or [2], based on DDNS type, the ddns-\u003edomain variable, that has the value of the domain parameter provided through the SetDdns API, is not validated properly. This would lead to an OS command injection. An attacker can send an HTTP request to trigger this vulnerability.","status":"published","published":"2022-01-28T20:15:11.607Z","modified":"2026-06-17T04:06:52.767Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:07:04.178977Z"}]}}