CVE-2026-71914

Critical

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.

SeverityCritical

CVSS9.8

Exploit probability—

ProductVigorAP 918R

PublishedAug 24, 2026

First seenAug 24, 2026

Weakness typeCWE-78OS command injection

How to fix

Update

DrayTek Corporation VigorAP 918R1.4.11 or later
DrayTek Corporation VigorAP 960C1.4.12 or later
DrayTek Corporation VigorAP 1060C1.4.12 or later
DrayTek Corporation VigorAP 9061.4.13 or later
DrayTek Corporation VigorAP 912C1.4.15 or later
DrayTek Corporation VigorAP 9031.4.22 or later

Vendor advisories

draytek.com/about/security-advisory/multiple-remote-code-execution-and-buffer-overflow-vulnerabilities-in-vigorap-series-august-2026/

Affected products

Product	Affected versions	Fixed in
DrayTek Corporation VigorAP 918R	v < 1.4.11	1.4.11
DrayTek Corporation VigorAP 960C	v < 1.4.12	1.4.12
DrayTek Corporation VigorAP 1060C	v < 1.4.12	1.4.12
DrayTek Corporation VigorAP 906	v < 1.4.13	1.4.13
DrayTek Corporation VigorAP 912C	v < 1.4.15	1.4.15
DrayTek Corporation VigorAP 903	v < 1.4.22	1.4.22

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