CVE-2026-71914
Received Received - Intake

Command Injection in DrayTek VigorAP Firmware

Publication date: 2026-08-24

Last updated on: 2026-08-24

Assigner: VulnCheck

Description
Multiple DrayTek VigorAP models contain a command injection vulnerability in the dray_apm component. The vulnerability is caused by insufficient validation of UDP message content after START_SPEED_TEST before command execution. A remote attacker can trigger this vulnerability via a crafted message to execute arbitrary commands with root privileges.

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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-2026-71914
EUVD
EUVD-2026-64973

Affected Vendors & Products

Showing 7 associated CPEs
Vendor Product Version / Range
draytek vigorap *
draytek vigorap 918r
draytek vigorap 960c
draytek vigorap 1060c
draytek vigorap 906
draytek vigorap 912c
draytek vigorap 903

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-2026-71914 is an OS command injection vulnerability in multiple DrayTek VigorAP models. It exists in the dray_apm component due to insufficient validation of UDP message content after a START_SPEED_TEST command. A remote attacker can exploit this by sending a crafted message to execute arbitrary commands with root privileges.

Detection Guidance

Detection may involve checking for unusual network traffic or UDP messages targeting the dray_apm component. Monitor for START_SPEED_TEST commands followed by unexpected payloads. Inspect logs for unauthorized command execution attempts or root-level activities on affected DrayTek VigorAP models.

Impact Analysis

If exploited, this vulnerability could allow an attacker to execute arbitrary commands with root privileges on the affected device. This may lead to full system compromise, unauthorized access, or further network infiltration. However, exploitation typically requires network access to the device.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by allowing unauthorized root-level access to network devices. Unauthorized command execution may lead to data breaches, unauthorized data access, or system compromise, violating confidentiality and integrity requirements under these regulations.

Mitigation Strategies

Immediately upgrade to the latest firmware versions provided by DrayTek for your specific VigorAP model. Ensure administrative access is restricted and disable unnecessary remote management interfaces. Monitor vendor advisories for additional updates or patches.

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