CVE-2026-71915
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 jsonstatus function. The vulnerability is caused by insufficient filtering of the usescript, usefile, and option 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-2026-71915
EUVD
EUVD-2026-64974

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
draytek vigorswitch From 1.0 (exc) to 3.5.0 (inc)
draytek vigorswitch *
draytek vigorswitch From FX (inc)

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

CVE-2026-71915 is a high-severity OS command injection vulnerability in multiple DrayTek VigorSwitch models. It exists in the jsonstatus function due to insufficient filtering of the usescript, usefile, and option fields, allowing remote attackers to execute arbitrary commands with root privileges.

Detection Guidance

Detection requires checking if your DrayTek VigorSwitch models are running vulnerable firmware versions. Review the device's web management interface for administrative access logs or unusual command execution patterns. No specific commands are provided in the available resources.

Impact Analysis

An attacker with valid administrative credentials could exploit this to execute arbitrary commands with root privileges on affected DrayTek VigorSwitch devices, potentially leading to full system compromise, data theft, or disruption of network operations.

Compliance Impact

This vulnerability allows remote attackers with administrative access to execute arbitrary commands with root privileges on affected DrayTek VigorSwitch devices. Such unauthorized access could lead to data breaches, unauthorized data modification, or system compromise, which may violate compliance requirements under GDPR (data protection) and HIPAA (healthcare data security).

Mitigation Strategies

Immediately update affected DrayTek VigorSwitch models to the latest firmware version provided by DrayTek. Restrict administrative access to the device's web management interface to trusted networks or IP addresses. Disable unnecessary services and monitor for suspicious activity.

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