CVE-2026-100896
Received Received - Intake

Command Injection in TOTOLINK N150RT Router

Publication date: 2026-09-28

Last updated on: 2026-09-28

Assigner: VulDB

Description
A weakness has been identified in TOTOLINK N150RT 3.4.0-B20201030. The affected element is the function system of the file /boafrm/formWlSiteSurvey of the component Web Management Interface. This manipulation of the argument wlanif causes os command injection. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.

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Meta Information

Published
2026-09-28
Last Modified
2026-09-28
Generated
2026-09-28
AI Q&A
2026-09-28
EPSS Evaluated
N/A
NVD
CVE-2026-100896
EUVD
EUVD-2026-88060

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
totolink n150rt 3.4.0-b20201030

Helpful Resources

Exploitability

CWE
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KEV
KEV Icon
CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Attack-Flow Graph

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Executive Summary

This vulnerability is an OS command injection flaw in TOTOLINK N150RT firmware version 3.4.0-B20201030. It exists in the web management interface's /boafrm/formWlSiteSurvey endpoint where the wlanif parameter is improperly handled. Attackers can inject malicious commands by manipulating this parameter, which gets executed with root privileges due to unvalidated system() calls.

Detection Guidance

Check for unauthorized access to the TOTOLINK N150RT web management interface. Inspect network traffic for requests to /boafrm/formWlSiteSurvey with unusual parameters like wlanif containing semicolons or commands. Look for unexpected files or processes on the device.

Impact Analysis

This vulnerability allows remote attackers to execute arbitrary commands on your device with root privileges. This could lead to full device compromise including stealing credentials, accessing sensitive files, modifying firmware, installing persistent backdoors, or using your device as part of a botnet. The attack requires authentication but can be exploited remotely.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR and HIPAA by enabling unauthorized access to personal and health data. GDPR requires protection of personal data while HIPAA mandates safeguards for protected health information. A successful exploit could result in data breaches, violating these regulations and potentially leading to legal penalties and reputational damage.

Mitigation Strategies

Disable remote access to the web interface if possible. Update to the latest firmware if a patch is available. Implement strict input validation for the wlanif parameter. Monitor for suspicious activity or unauthorized changes.

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