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CVE-2021-40407

CWE-78

High

87.7

RPS

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.

Source: NVD

Signals

CVSS
7.2
High · v3.1
EPSS
47.63%
Probability of exploitation in the next 30 days (FIRST)
CISA KEV
In CISA KEV since Dec 2024
Fix commit
No known fix commit
Sources: MoreFixes, FreshFixes
Weakness
CWE-78
Published
28 Jan 2022
Last modified 3 Nov 2025

How to read these signals: RPS · EPSS · CISA KEV · Data sources

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Data as of 7 Oct 2026, 05:16 UK time

CVE-2021-40407 · RPS 87.7 · DevSecure Intelligence