What is CVE-2021-40419?

CVE-2021-40419 is a high-severity vulnerability in Reolink Rlc-410w, classified under Active Debug Code. CVSS score: 7.5/10. Published 2022-01-28.

How severe is CVE-2021-40419?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Reolink Rlc-410w

CVE-2021-40419

A firmware update vulnerability exists in the 'factory' binary of reolink RLC-410W v3.0.0.136_20121102. A specially-crafted series of network requests can lead to arbitrary firmware update. An attacker can send a sequence of requests to trigger this vulnerability.

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

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.012 (67.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

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

Weakness classification (CWE)

CWE-489 — Active Debug Code

References

talosintelligence.com/vulnerability_reports/TALOS-2021-1428 (Technical Description, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-40419?: CVE-2021-40419 is a high-severity vulnerability in Reolink Rlc-410w, classified under Active Debug Code. CVSS score: 7.5/10. Published 2022-01-28.
How severe is CVE-2021-40419?: High severity. CVSS v3 base score is 7.5 out of 10.