---
id: CVE-2026-119740
title: Nexbox A95X Amlogic S905X UART Unauthenticated Console Access
summary: >-
  Nexbox A95X TV boxes built on the Amlogic S905X platform contain an
  unauthenticated console exposed via an internal UART header on the PCB that
  allows physical attackers to obtain an interactive shell as uid 2000 (system)
  without any cre…
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-306
vendor: Nexbox
product: A95X
affected:
  - A95X A7_S905X_v2_2 20160713
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-03T17:56:06.428530Z'
exploitAvailable: true
published: '2026-11-02'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T18:33:41.731Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-119740'
references:
  - url: >-
      https://mstreet97.github.io/security-research/vulnerability-disclosure/embedded/cve/2026/10/29/From-UART-to-root-android-version.html
    label: Researcher Disclosure
  - url: >-
      https://www.vulncheck.com/advisories/nexbox-a95x-amlogic-s905x-uart-unauthenticated-console-access
    label: >-
      VulnCheck Advisory: Nexbox A95X Amlogic S905X UART Unauthenticated Console
      Access
tags:
  - cve.org
  - exploit-available
epss: 0.00791
epssPercentile: 0.56416
ingestedAt: '2026-11-05T20:33:06.369Z'
---

## Overview

Nexbox A95X TV boxes built on the Amlogic S905X platform contain an unauthenticated console exposed via an internal UART header on the PCB that allows physical attackers to obtain an interactive shell as uid 2000 (system) without any credentials. Attackers with physical access and a USB-to-TTL adapter can leverage this shell to reach the pppoe_wrapper vendor daemon, which contains an OS command injection vulnerability executed as root, resulting in full root-level compromise of the device.

## Affected

- `A95X A7_S905X_v2_2 20160713`

## Remediation

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