CVE-2021-40406

7.5 highEPSS 1.5%

High (7.5) in reolink rlc-410w firmware. EPSS 1.5% chance of exploitation in the next 30 days.

A denial of service vulnerability exists in the cgiserver.cgi session creation functionality of reolink RLC-410W v3.0.0.136_20121102. A specially-crafted HTTP request can lead to prevent users from logging in. An attacker can send an HTTP request to trigger this vulnerability.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-31)
CWE: CWE-400
Published: 2022-01-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

reolink:rlc-410w_firmware

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1423
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1423

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