CVE intelligence and bounded remediation

CVE-2025-15551 — Tp-Link Archer Mr200 Firmware security vulnerability

Medium CVSS 5.9

The response coming from TP-Link Archer MR200 v5.2, C20 v5 and v6, TL-WR850N v3, and TL-WR845N v4 for any request is getting executed by the JavaScript function like eval directly without any check. Attackers can exploit this vulnerability via a Man-in-the-Middle (MitM) attack to execute JavaScript code on the router's admin web portal without the user's permission or knowledge.

Severity
Medium
CVSS
5.9 (4.0)
Published
2026-02-05
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-95

Affected products

  • tp-link / archer_mr200_firmware
  • tp-link / archer_c20_firmware
  • tp-link / tl-wr850n_firmware
  • tp-link / tl-wr845n_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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