---
id: CVE-2026-78577
title: >-
  Tapo C120 v1 and C200 V5

  contain a vulnerability in the HTTPS onboarding scan function due to missing
  authentication.

  After initial setup, an unauthenticated attacker on the same local network can

  invoke the scan action and retrieve near…
summary: >-
  Tapo C120 v1 and C200 V5

  contain a vulnerability in the HTTPS onboarding scan function due to missing
  authentication.

  After initial setup, an unauthenticated attacker on the same local network can

  invoke the scan action and retrieve near…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-306
vendor: TP-Link Systems Inc.
product: Tapo C200 v5
affected:
  - tapo_c200_v5 < V5_1.4.6 Build 260709 Rel.27675n
  - tapo_c120_v1 < V1_1.9.4 Build 260813 Rel.79754n
published: '2026-10-01'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T20:36:38.330'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-78577'
references:
  - url: >-
      https://www.tp-link.com/en/support/download/tapo-c120/v1.26/#Firmware-Release-Notes
    label: f23511db-6c3e-4e32-a477-6aa17d310630
  - url: >-
      https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes
    label: f23511db-6c3e-4e32-a477-6aa17d310630
  - url: >-
      https://www.tp-link.com/us/support/download/tapo-c120/v1.26/#Firmware-Release-Notes
    label: f23511db-6c3e-4e32-a477-6aa17d310630
  - url: >-
      https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes
    label: f23511db-6c3e-4e32-a477-6aa17d310630
  - url: 'https://www.tp-link.com/us/support/faq/5321/'
    label: f23511db-6c3e-4e32-a477-6aa17d310630
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-01T18:08:50.711151Z'
cvssSource: cna
ingestedAt: '2026-10-01T18:55:42.377Z'
epss: 0.00162
epssPercentile: 0.05354
---

## Overview

Tapo C120 v1 and C200 V5
contain a vulnerability in the HTTPS onboarding scan function due to missing authentication.
After initial setup, an unauthenticated attacker on the same local network can
invoke the scan action and retrieve nearby wireless access-point metadata,
including SSIDs, BSSIDs, authentication and encryption modes, and
signal-strength information.









Successful
exploitation may disclose information about the wireless environment
surrounding the camera, allowing an attacker to learn elements of the local
wireless topology.

## Remediation

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