---
id: CVE-2021-47796
title: >-
  Denver SHO-110 IP cameras expose a secondary HTTP service on TCP port 8001
  that provides access to a '/snapshot' endpoint without authentication
summary: >-
  Denver SHO-110 IP cameras expose a secondary HTTP service on TCP port 8001
  that provides access to a '/snapshot' endpoint without authentication. While
  the primary web interface on port 80 enforces authentication, the backdoor
  service al…
severity: high
cwe:
  - CWE-306
  - CWE-1242
published: '2026-01-16'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T14:17:08.200'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-47796'
references:
  - url: >-
      http://old.denver.eu/products/smart-home-security/denver-sho-110/c-1024/c-1243/p-3826
    label: disclosure@vulncheck.com
  - url: 'https://www.exploit-db.com/exploits/50162'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/denver-sho-110-ip-camera-unauthenticated-snapshot-access
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00795
epssPercentile: 0.56232
ingestedAt: '2026-10-12T14:50:34.031Z'
vendor: Denver
product: SHO-110
affected:
  - SHO-110 all versions
cvss: 8.7
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-01-16T16:04:43.105816Z'
cvssSource: cna
---

## Overview

Denver SHO-110 IP cameras expose a secondary HTTP service on TCP port 8001 that provides access to a '/snapshot' endpoint without authentication. While the primary web interface on port 80 enforces authentication, the backdoor service allows any remote attacker to retrieve image snapshots by directly requesting the 'snapshot' endpoint. An attacker can repeatedly collect snapshots and reconstruct the camera stream, compromising the confidentiality of the monitored environment.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.