CVE-2021-40407An OS command injection vulnerability exists in the device network settings functionality of reolink RLC-410W v3.0.0.136_20121102.
Updated under an hour ago ()
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It affects reolink rlc-410w_firmware. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Dec 18, 2024; federal agencies had to remediate by Jan 8, 2025. Treat that date as your deadline.
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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
- 9.1 CRITICAL (v3.0, CNA)CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-78
- Known exploited
- Added to CISA KEV Dec 18, 2024; federal remediation due Jan 8, 2025The 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.
- EPSS (exploitation in the next 30 days)
- 47.63% (percentile 99)
- Assigned by
- talos
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
reolink rlc-410w_firmware reolink:rlc-410w_firmware | 3.0.0.136_20121102 | NVD |
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1424x-refsource-misc, exploit, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40407us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.