What is CVE-2021-40413?

CVE-2021-40413 is a high-severity vulnerability in Reolink Rlc-410w, classified under Improper Access Control. CVSS score: 7.1/10. Published 2022-01-28.

How severe is CVE-2021-40413?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Reolink Rlc-410w

CVE-2021-40413

An incorrect default permission vulnerability exists in the cgiserver.cgi cgi_check_ability functionality of reolink RLC-410W v3.0.0.136_20121102. The UpgradePrepare is the API that checks if a provided filename identifies a new version of the RLC-410W firmware. If the version is new, it would be possible, allegedly, to later on perform the Upgrade. 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 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.

EPSS exploit prediction

EPSS: 0.008 (55.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · 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-2021-40413?: CVE-2021-40413 is a high-severity vulnerability in Reolink Rlc-410w, classified under Improper Access Control. CVSS score: 7.1/10. Published 2022-01-28.
How severe is CVE-2021-40413?: High severity. CVSS v3 base score is 7.1 out of 10.