What is CVE-2021-40416?

CVE-2021-40416 is a high-severity vulnerability in Reolink Rlc-410w, classified under Improper Access Control. CVSS score: 8.8/10. Published 2022-01-28.

How severe is CVE-2021-40416?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Reolink Rlc-410w

CVE-2021-40416

An incorrect default permission vulnerability exists in the cgiserver.cgi cgi_check_ability functionality of reolink RLC-410W v3.0.0.136_20121102. All the Get APIs that are not included in cgi_check_ability are already executable by any logged-in users. An attacker can send an HTTP request to trigger this vulnerability.

Published 2022-01-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (57.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Reolink Rlc-410w
Reolink Rlc-410w Firmware — versions 3.0.0.136_20121102

Weakness classification (CWE)

References

talosintelligence.com/vulnerability_reports/TALOS-2021-1425 (Technical Description, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-40416?: CVE-2021-40416 is a high-severity vulnerability in Reolink Rlc-410w, classified under Improper Access Control. CVSS score: 8.8/10. Published 2022-01-28.
How severe is CVE-2021-40416?: High severity. CVSS v3 base score is 8.8 out of 10.