{"cve":"CVE-2021-40407","nvd":{"published":"2022-01-28T20:15:11.607","modified":"2026-06-17T04:06:52.767","status":"Analyzed","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->domain 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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":7.2},"cwes":["CWE-78"],"references":["https://talosintelligence.com/vulnerability_reports/TALOS-2021-1424","https://talosintelligence.com/vulnerability_reports/TALOS-2021-1424","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40407"],"products":["reolink:rlc-410w_firmware"],"source":"nvd","synced_at":"2026-10-19T21:27:20.926095847+00:00"},"epss":{"cve":"CVE-2021-40407","score":0.47635,"percentile":0.98847,"date":"2026-10-31"},"kev":{"cve":"CVE-2021-40407","date_added":"2024-12-18","due_date":"2025-01-08","vendor":"Reolink","product":"RLC-410W IP Camera","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}