CVE-2021-40407

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 v3.1

7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS v3.0

9.1 CRITICALCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS v2.0

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

47.63% chance of exploitation in the next 30 days, 99th percentile

CISA KEV

added 2024-12-18

Published

2022-01-28

Updated

2025-10-21

Proof-of-concept exploits (1)

• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1424

References

• CVE Record
• NVD entry

Related

• CVE-2021-40406
• CVE-2021-40408
• CVE-2021-40405
• CVE-2021-40409
• CVE-2021-40404
• CVE-2021-40410