CVE-2021-40150Public exploitNetwork attack vector

Configuration disclosure via publicly mapped web directory

Published Jul 17, 2022 · Updated Aug 4, 2024

Information disclosure in Reolink E1 Zoom 3.0.0.716 and earlier allows remote attackers to read web server configuration files. Its web server maps the /conf/ directory to a publicly accessible path, exposing NGINX and FastCGI configuration files without authentication. Network access to the camera is sufficient, and the reported consequence is limited to reading configuration data.

CVSS severity7.5
High
EPSS probability3.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Reolink E1 Zoom 3.0.0.716 and earlier allows remote attackers to read web server configuration files. Its web server maps the /conf/ directory to a publicly accessible path, exposing NGINX and FastCGI configuration files without authentication. Network access to the camera is sufficient, and the reported consequence is limited to reading configuration data.

The record

CVE
CVE-2021-40150
Published
Jul 17, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-552, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3RCE SecurityCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
7.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-552Files or Directories Accessible to External Parties
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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