What is CVE-2021-40423?

CVE-2021-40423 is a high-severity vulnerability in Reolink Rlc-410w, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2022-01-28.

How severe is CVE-2021-40423?

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

Improper input validation in Reolink Rlc-410w

CVE-2021-40423

A denial of service vulnerability exists in the cgiserver.cgi API command parser functionality of Reolink RLC-410W v3.0.0.136_20121102. A specially-crafted series of HTTP requests can lead to denial of service. An attacker can send an HTTP request to trigger this vulnerability.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.013 (68.4th percentile) — read the EPSS interpretation.

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:N/A:H.

Affected products

Reolink Rlc-410w
Reolink Rlc-410w_firmware — versions 3.0.0.136_20121102
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

talos-cna@cisco.com (Technical Description, Third Party Advisory, x_refsource_MISC, Broken Link)
nvd@nist.gov (Exploit, Technical Description, Third Party Advisory)

Frequently asked questions

What is CVE-2021-40423?: CVE-2021-40423 is a high-severity vulnerability in Reolink Rlc-410w, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2022-01-28.
How severe is CVE-2021-40423?: High severity. CVSS v3 base score is 7.5 out of 10.