RCE in Reolink Rlc-410w
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.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.476 (98.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Reolink Rlc-410w
- Reolink Rlc-410w_firmware — versions 3.0.0.136_20121102
- N/a — versions n/a
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
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.
Public proof-of-concept exploits
References
- talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2021-40407?
- CVE-2021-40407 is a high-severity vulnerability in Reolink Rlc-410w, classified under OS Command Injection. CVSS score: 7.2/10. Published 2022-01-28.
- How severe is CVE-2021-40407?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2021-40407 known to be exploited?
- Yes. CVE-2021-40407 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-12-18), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.