CVE-2021-4469Public exploitNetwork attack vector

Live-image disclosure via unauthenticated snapshot service

Published Nov 14, 2025 · Updated Nov 14, 2025

Missing authentication in Denver SHO-110 firmware version 0 allows remote attackers to retrieve camera snapshots over TCP port 8001. The secondary HTTP service accepts direct requests to /snapshot and returns live images without applying the authentication enforced by the port 80 interface. Network reachability to TCP port 8001 is sufficient; repeated requests disclose successive images that can be assembled into a camera stream.

CVSS severity8.7
High
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Denver SHO-110 firmware version 0 allows remote attackers to retrieve camera snapshots over TCP port 8001. The secondary HTTP service accepts direct requests to /snapshot and returns live images without applying the authentication enforced by the port 80 interface. Network reachability to TCP port 8001 is sufficient; repeated requests disclose successive images that can be assembled into a camera stream.

The record

CVE
CVE-2021-4469
Published
Nov 14, 2025
Updated
Nov 14, 2025
Vendor
Denver A/S
Product
SHO-110
Classifications
CWE-306, CWE-1242, CAPEC-36, T1125
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Denver A/S · SHO-110version=0

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA: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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-1242Inclusion of Undocumented Features or Chicken Bits
CAPEC-36Using Unpublished Interfaces or Functionality
T1125Video Capture

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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