CVE-2026-71914 PUBLISHED

DrayTek VigorAP Multiple Models Pre-Authentication OS Command Injection via dray_apm

Assigner: VulnCheck
Reserved: 08.08.2026 Published: 24.08.2026 Updated: 24.08.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 9.3

Product Status

Vendor DrayTek Corporation
Product VigorAP 918R
Versions Default: unaffected
  • affected from 0 to 1.4.11 (excl.)
Vendor DrayTek Corporation
Product VigorAP 960C
Versions Default: unaffected
  • affected from 0 to 1.4.12 (excl.)
Vendor DrayTek Corporation
Product VigorAP 1060C
Versions Default: unaffected
  • affected from 0 to 1.4.12 (excl.)
Vendor DrayTek Corporation
Product VigorAP 906
Versions Default: unaffected
  • affected from 0 to 1.4.13 (excl.)
Vendor DrayTek Corporation
Product VigorAP 912C
Versions Default: unaffected
  • affected from 0 to 1.4.15 (excl.)
Vendor DrayTek Corporation
Product VigorAP 903
Versions Default: unaffected
  • affected from 0 to 1.4.22 (excl.)

Credits

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

References

Problem Types

  • Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE