External risk intelligence

TP-Link Router Command Execution Vulnerability.

CVE advisoryKnown Exploit

CVE-2025-9377

An authenticated remote command execution vulnerability impacts specific TP-Link router models. This could allow attackers to gain unauthorized control over affected devices, posing a business risk, especially as the products are end-of-life and no longer supported by the vendor.

2Halo Surface Signal

OS Command Injection

Tp Link Tl Wr841n Firmware

before 241108

External exposure likelihood

Halo Surface Signal score for CVE-2025-9377

The vulnerability affects consumer-grade wireless routers. While these devices are network-connected, administrative interfaces like the Parental Control page are typically intended for local-only access and are usually restricted by default from exposure to the public internet.

Horizon Alert

Summary of the vulnerability and why it matters

This vulnerability impacts specific TP-Link router models, specifically their Parental Control feature. An attacker with existing access to the network could potentially execute commands on the affected devices. This could lead to unauthorized system control and compromise of the router's functionality.

  • Vulnerable Parental Control page
  • Allows unauthorized command execution
  • Disrupts device operations

Attack Path

How an attacker could exploit the issue

An authenticated remote command execution vulnerability exists within the Parental Control page of specific TP-Link router models. This flaw allows an attacker with existing access to execute arbitrary commands on the affected device. Exploitation of this vulnerability could lead to unauthorized control over the device and potentially impact network operations.

  • Exposure condition: Authenticated access to Parental Control page.
  • Attacker starting point: Network access to the device.
  • Trigger and result: Execute commands, gain control.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an authenticated attacker to execute commands on affected TP-Link router models. The affected products are end-of-life, meaning official support and patches are no longer provided by the vendor. Organizations using these devices face significant business risk due to the potential for unauthorized command execution, which could lead to system compromise and data loss.

  • Likely attacker: Sophisticated
  • Required access: Authenticated user
  • Business risk: High

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability, present in certain TP-Link router models, allows for authenticated remote command execution through the Parental Control page. The affected products are considered end-of-life. Organizations should prioritize identifying all instances of these specific router models within their network infrastructure. Given the end-of-life status, a direct vendor fix may not be available, necessitating a proactive approach to risk mitigation and potential replacement.

  • Identify affected router models.
  • Reduce exposure or isolate risk.
  • Replace or implement compensating controls.
  • Monitor for related security events.

Frequently asked questions

What is the purpose of TP-Link Archer C7(EU) V2 and TL-WR841N/ND(MS) V9 routers?

These are wireless routers that provide internet connectivity and network services for homes and small offices. They manage network traffic, allow devices to connect to the internet, and often include features like parental controls for managing network access.

How does the CVE-2025-9377 vulnerability function, and what is its weakness class?

CVE-2025-9377 is an OS command injection vulnerability. This means an attacker could trick the router into running unintended commands by providing specially crafted input to the Parental Control page. This falls under the CWE-78 weakness class.

What is required for an attacker to exploit CVE-2025-9377, and what is the scope of the impact?

An authenticated attacker with network access to the device can exploit this vulnerability by interacting with the Parental Control page. The impact includes unauthorized command execution on the router, potentially disrupting device operations and leading to system compromise.

What is the relevance of CVE-2025-9377, considering its vendor and Halo Surface Signal score?

This vulnerability affects TP-Link Archer C7(EU) V2 and TL-WR841N/ND(MS) V9 routers. Halo Surface Signal assesses the likelihood of exploitation as 'Unlikely' due to the typical restricted access of administrative interfaces like Parental Control. However, the vendor's own assessment indicates potential for external exploitation.

What practical steps should be taken in response to the CVE-2025-9377 vulnerability?

Given that the affected router models are end-of-life, official patches may not be available. Organizations should identify all instances of these routers, reduce their exposure or isolate them, and consider replacement or implementing compensating controls. Monitoring for related security events is also advised.

References