Command Injection Vulnerability in DrayTek VigorAP Models
CVE-2026-71904

8.6HIGH

Key Information:

Vendor

Draytek Corporation

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

What is CVE-2026-71904?

Multiple models of DrayTek's VigorAP series are susceptible to a command injection vulnerability due to inadequate filtering of input processed by the tr069TestInform function. An attacker with valid administrative credentials can leverage this flaw to execute arbitrary system commands with root privileges by passing specially crafted input. Successful exploitation poses significant risks, including unauthorized access and control over the affected devices.

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:
8.6
Severity:
HIGH
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)
.