CVE-2021-40414
Reolink
- Published
- 28 January 2022
- Last modified
- 17 June 2026
- CVSS
- 7.1 v3.1
- Severity
- high
- EPSS
- 0.8% (54th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-284, CWE-276
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Description
An incorrect default permission vulnerability exists in the cgiserver.cgi cgi_check_ability functionality of reolink RLC-410W v3.0.0.136_20121102. The SetMdAlarm API sets the movement detection parameters, giving the ability to set the sensitivity of the camera per a range of hours, and which of the camera spaces to ignore when considering movement detection. Because in cgi_check_ability the SetMdAlarm API does not have a specific case, the user permission will default to 7. This will give non-administrative users the possibility to change the movement detection parameters.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 0.8% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| RLC-410W | Reolink | unknown | 3.0.0.136_20121102, <= 1.0.227 |
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1425 exploit
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1425 exploit
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.