CVE intelligence and bounded remediation

CVE-2019-16273 — Dten D5 Firmware security vulnerability

Critical CVSS 9.8

DTEN D5 and D7 before 1.3.4 devices allow unauthenticated root shell access through Android Debug Bridge (adb), leading to arbitrary code execution and system administration. Also, this provides a covert ability to capture screen data from the Zoom Client on Windows by executing commands on the Android OS.

Severity
Critical
CVSS
9.8 (3.1)
Published
2020-01-06
CISA KEV
Not currently listed
Ecosystem
operating-system

Affected products

  • dten / d5_firmware
  • dten / d7_firmware

Matched remediation archetype

Command, code, expression, and template injection

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Check exposure

  • Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
  • Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
  • Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.

Remediate safely

  • Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
  • Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
  • Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.

Authoritative sources

Complete CVE record and remediation plan

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