HOMEVULNERABILITIESCVE-2021-44414
HIGH

CVE-2021-44414

CWE-20Published: January 28, 2022· Updated: Jun 17, 2026

7.7
CVSS v3.1

Official Description

A denial of service vulnerability exists in the cgiserver.cgi JSON command parser functionality of reolink RLC-410W v3.0.0.136_20121102. A specially-crafted HTTP request can lead to a reboot. DelUser param is not object. An attacker can send an HTTP request to trigger this vulnerability.

NVD Source

Technical Analysis

CVE-2021-44414 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.7.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeChanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected Vendors & Products

reolink2 product(s)
rlc-410w firmwarerlc-410w
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (2)

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1421Exploit · Technical Description · Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1421Exploit · Technical Description · Third Party Advisory

Quick Facts

CVE IDCVE-2021-44414
CVSS Score7.7 / 10
SeverityHIGH
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedJan 28, 2022

Related CVEs (CWE-20)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2021-44414 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.