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Exploited. On CISA's list since 2024-12-18.
CVE-2021-40407 · Reolink RLC-410W IP Camera · Published 2022-01-28
7.2 out of 10
CVSS rates it high.
48%
Estimated chance of exploitation in the next 30 days, higher than 98% of all scored flaws (EPSS, 2026-10-29).
Yes
CISA has seen it exploited in real attacks. For US government agencies the fix is deadline passed 660 days ago (2025-01-08).
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.
Reolink RLC-410W IP cameras contain an authenticated OS command injection vulnerability in the device network settings functionality.
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.
From the NVD.
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Input changes a command that the server runs through its operating system.
CWE-78 · CISA KEV; NVD record: nvd@nist.gov; NVD record: talos-cna@cisco.com
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CWE is a catalogue of weakness types. Labels come from the sources shown and can differ or change. Resource matches reviewed 16 October 2026.
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Exploited flaws from CISA's KEV catalogue. Chance of exploitation from EPSS by FIRST. Descriptions and scores from the NVD. This product uses the NVD API but is not endorsed or certified by the NVD.