Vulnerability · Published Nov 2, 2026 · Assigned by VulnCheck

CVE-2026-119740Nexbox A95X Amlogic S905X UART Unauthenticated Console Access

Medium 6.8

In plain English

A medium-severity missing authentication in A95X from Nexbox. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).

Severity (CVSS 3.1)6.8Medium

Exploit odds (30 days)0.8%top 43.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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 products (as reported)

Vendor	Product	Versions
Nexbox	A95X	A7_S905X_v2_2 20160713

Weakness: CWE-306 · Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Researcher Disclosure technical-description, exploit
VulnCheck Advisory: Nexbox A95X Amlogic S905X UART Unauthenticated Console Access third-party-advisory