CVE-2026-71925
Received Received - Intake

Command Injection in DrayTek VigorSwitch

Publication date: 2026-08-24

Last updated on: 2026-08-24

Assigner: VulnCheck

Description
Multiple DrayTek VigorSwitch models contain a command injection vulnerability in the getDetail function. The vulnerability is caused by insufficient filtering of the username and password fields before command execution. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands with root privileges. Exploitation requires valid administrative credentials for the device's web management interface.

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Meta Information

Published
2026-08-24
Last Modified
2026-08-24
Generated
2026-08-24
AI Q&A
2026-08-24
EPSS Evaluated
N/A
NVD
CVE-2026-71925
EUVD
EUVD-2026-64984

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
draytek vigorswitch *

Helpful Resources

Exploitability

CWE
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KEV
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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.

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Executive Summary

This is an OS command injection vulnerability in multiple DrayTek VigorSwitch models. It exists in the getDetail function due to insufficient filtering of username and password fields. A remote attacker with valid admin credentials can exploit this to execute arbitrary commands with root privileges.

Detection Guidance

Detecting this vulnerability requires checking if your DrayTek VigorSwitch devices have vulnerable firmware versions. Review the device's web management interface for firmware version details. Network scanning tools may identify affected models but cannot confirm vulnerability without firmware verification.

Impact Analysis

An attacker could take full control of affected VigorSwitch devices, steal sensitive data, disrupt network operations, or use the device as a pivot point to attack other systems on the network. Since commands run with root privileges, the impact is severe.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating confidentiality requirements in GDPR and HIPAA. Organizations using affected devices may face compliance violations, legal penalties, and reputational damage if exploited.

Mitigation Strategies

Immediately update affected DrayTek VigorSwitch devices to the latest firmware versions provided by DrayTek. Ensure administrative credentials for the web management interface are strong and not shared. Restrict access to the device's web interface to trusted networks only.

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