---
id: CVE-2026-123993
title: Hisense VIDAA Smart TV Unauthenticated WebDriver Remote Access
summary: >-
  Hisense VIDAA Smart TV firmware V0000.01.00a.P0220 contains an unauthenticated
  access vulnerability where a QA build of the Google Cobalt browser engine
  exposes the WebDriver automation server on TCP port 4444 across all network
  interfac…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-489
  - CWE-306
vendor: Hisense
product: VIDAA
affected:
  - VIDAA 0000.01.00a.P0220
published: '2026-11-06'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T18:52:34.713Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-123993'
references:
  - url: 'https://github.com/yehia-mamdouh/Hisense-Smart-TV-Security-Research'
    label: Researcher Disclosure
  - url: >-
      https://www.vulncheck.com/advisories/hisense-vidaa-smart-tv-unauthenticated-webdriver-remote-access
    label: >-
      VulnCheck Advisory: Hisense VIDAA Smart TV Unauthenticated WebDriver
      Remote Access
tags:
  - cve.org
ingestedAt: '2026-11-06T19:01:36.623Z'
epss: 0.0023
epssPercentile: 0.13949
---

## Overview

Hisense VIDAA Smart TV firmware V0000.01.00a.P0220 contains an unauthenticated access vulnerability where a QA build of the Google Cobalt browser engine exposes the WebDriver automation server on TCP port 4444 across all network interfaces without any authentication or pairing requirement. A LAN-adjacent attacker can connect to the exposed WebDriver service to execute arbitrary JavaScript, read and exfiltrate sensitive localStorage data including ACR telemetry, MAC addresses, ad-service credentials, and location data, inject persistent content onto the display, and access the window.hisense native bridge to perform filesystem read/write and system-state operations.

## Affected

- `VIDAA 0000.01.00a.P0220`

## Remediation

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