What is CVE-2021-40415?

CVE-2021-40415 is a medium-severity vulnerability in Reolink Rlc-410w, classified under Improper Access Control. CVSS score: 6.5/10. Published 2022-01-28.

How severe is CVE-2021-40415?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Reolink Rlc-410w

CVE-2021-40415

An incorrect default permission vulnerability exists in the cgiserver.cgi cgi_check_ability functionality of reolink RLC-410W v3.0.0.136_20121102. In cgi_check_ability the Format API does not have a specific case, the user permission will default to 7. This will give non-administrative users the possibility to format the SD card and reboot the device.

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

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.008 (55.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.1% 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-2021-40415?: CVE-2021-40415 is a medium-severity vulnerability in Reolink Rlc-410w, classified under Improper Access Control. CVSS score: 6.5/10. Published 2022-01-28.
How severe is CVE-2021-40415?: Medium severity. CVSS v3 base score is 6.5 out of 10.