CVE-2021-40407

HIGH7.2

CISA KEV

Published 2022-01-28 · Updated 2026-06-17 · Source talos-cna@cisco.com

Summary

CVE-2021-40407 is a high-severity (CVSS 7.2) vulnerability in Reolink RLC-410W IP Camera. CISA added it to the Known Exploited Vulnerabilities catalog on December 18, 2024, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by January 8, 2025. CISA does not currently list it as used in ransomware campaigns. Reolink has 2 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 2 known-exploited Reolink vulnerabilities →

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 vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE-78CWE-78

CISA Known-Exploited Vulnerability

Product: Reolink — RLC-410W IP Camera

Name: Reolink RLC-410W IP Camera OS Command Injection Vulnerability

Date added: 2024-12-18 · Due: 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.

References

View on NVD

More exploited Reolink vulnerabilities

Most recently added to CISA KEV

CVE-2019-11001
Multiple IP Cameras — Reolink Multiple IP Cameras OS Command Injection Vulnerability
added 2024-12-18

View all →

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