CVE intelligence and bounded remediation

CVE-2020-16210 — Redlion N-Tron 702-W Firmware security vulnerability

Critical CVSS 9

The affected product is vulnerable to reflected cross-site scripting, which may allow an attacker to remotely execute arbitrary code and perform actions in the context of an attacked user on the N-Tron 702-W / 702M12-W (all versions).

Severity
Critical
CVSS
9 (3.1)
Published
2020-09-01
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-79

Affected products

  • redlion / n-tron_702-w_firmware
  • redlion / n-tron_702m12-w_firmware

Matched remediation archetype

Cross-site scripting and unsafe browser output

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Trace reflected, stored, and DOM-derived untrusted values into HTML, attributes, URLs, styles, scripts, and client-side template sinks.
  • Identify affected origins, authenticated user roles, sensitive browser capabilities, and where content is shared across tenants.
  • Review framework escaping, rich-text sanitization, legacy templates, and client-side rendering paths.

Remediate safely

  • Use context-aware framework output encoding and safe DOM APIs; keep untrusted data out of executable contexts.
  • Sanitize intentionally supported markup with a maintained allowlist policy and validate URLs and attributes separately.
  • Update affected rendering components and add tests for every output context using inert sentinel markup.

Authoritative sources

Complete CVE record and remediation plan

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