Command Injection Flaw in DrayTek VigorAP Series Devices
CVE-2026-71914

9.3CRITICAL

Key Information:

Vendor

Draytek Corporation

Status
Vigorap 918r
Vigorap 960c
Vigorap 1060c
Vigorap 906
Vendor
CVE Published:
24 August 2026

What is CVE-2026-71914?

Multiple models of DrayTek VigorAP are affected by a command injection vulnerability in the dray_apm component. This issue arises from inadequate validation of UDP message content during the START_SPEED_TEST operation, allowing remote attackers to exploit this weakness. By sending specially crafted messages, attackers can execute arbitrary commands on the affected devices with root privileges, potentially compromising network security.

Affected Version(s)

VigorAP 1060C 0 < 1.4.12

VigorAP 903 0 < 1.4.22

VigorAP 906 0 < 1.4.13

References

https://www.draytek.com/about/security-advisory/multiple-...
vendor-advisory
https://www.vulncheck.com/advisories/draytek-vigorap-mult...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jincheng Wang (@winmt)
Le Yu (Nanjing University of Posts and Telecommunications)
Xiapu Luo (The Hong Kong Polytechnic University)
.