# CVE-2026-71909: DrayTek VigorAP command injection in InquierTime function

Source: https://junglewise.ai/threats/cve-2026-71909-draytek-vigorap-command-injection-in-inquiertime-function  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-24. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-71909 · Severity: high · CVSS 7.2 · Published 2026-08-24

DrayTek VigorAP is a wireless access point used in corporate networks. Multiple models contain a command injection flaw in the time configuration function that allows an authenticated attacker to execute arbitrary commands with root privileges on the device. An attacker with valid admin credentials could compromise the access point and potentially gain control over network traffic passing through it.

Technologies: [DrayTek VigorAP 1060C](https://junglewise.ai/threats/technologies/vigorap-1060c), [DrayTek VigorAP 903](https://junglewise.ai/threats/technologies/vigorap-903), [DrayTek VigorAP 906](https://junglewise.ai/threats/technologies/vigorap-906), [DrayTek VigorAP 912C](https://junglewise.ai/threats/technologies/vigorap-912c), [DrayTek VigorAP 918R](https://junglewise.ai/threats/technologies/vigorap-918r), [DrayTek VigorAP 960C](https://junglewise.ai/threats/technologies/vigorap-960c). Vendors: [DrayTek](https://junglewise.ai/threats/vendors/draytek).

## Quick answers

**Is CVE-2026-71909 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-71909 being exploited in the wild.

**How severe is CVE-2026-71909?** High severity, with a CVSS score of 7.2, published 24 August 2026.

**Which products and versions are affected?** DrayTek VigorAP 1060C before 1.4.12; DrayTek VigorAP 903 before 1.4.22; DrayTek VigorAP 906 before 1.4.13; DrayTek VigorAP 912C before 1.4.15; and 2 more.

**Is there a fix for CVE-2026-71909?** A patch was published on 2026-08-24: Firmware patches released for all affected models Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-71909 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-71909?** Check whether you run DrayTek VigorAP 1060C, DrayTek VigorAP 903, DrayTek VigorAP 906 or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A command injection vulnerability (CWE-78) exists in the InquierTime function across multiple VigorAP models due to insufficient sanitization of the time field parameter before shell command execution. The attack vector is network-based and requires valid administrative credentials to access the web management interface; no user interaction is needed once authenticated. A successful exploit allows an attacker to execute arbitrary OS commands with root-level privileges. Patches are available in the following fixed firmware versions: VigorAP 918R 1.4.11, VigorAP 960C/1060C 1.4.12, VigorAP 906 1.4.13, VigorAP 912C 1.4.15, and VigorAP 903 1.4.22.

## Affected products

- DrayTek VigorAP 918R before 1.4.11
- DrayTek VigorAP 960C before 1.4.12
- DrayTek VigorAP 1060C before 1.4.12
- DrayTek VigorAP 906 before 1.4.13
- DrayTek VigorAP 912C before 1.4.15
- DrayTek VigorAP 903 before 1.4.22

## Timeline

- 2026-08-24: disclosed: DrayTek security advisory DSA-2026-002 published
- 2026-08-24: patched: Firmware patches released for all affected models

## References

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

## Related threats

- [DrayTek VigorAP command injection in dray_apm](https://junglewise.ai/threats/cve-2026-71914-draytek-vigorap-command-injection-in-dray-apm)
- [DrayTek VigorAP command injection in upload_settings.cgi](https://junglewise.ai/threats/cve-2026-71913-draytek-vigorap-command-injection-in-upload-settings-cgi)
- [DrayTek VigorAP buffer overflow in apautotest](https://junglewise.ai/threats/cve-2026-71912-draytek-vigorap-buffer-overflow-in-apautotest)
- [DrayTek VigorAP buffer overflow in setLan function](https://junglewise.ai/threats/cve-2026-71911-draytek-vigorap-buffer-overflow-in-setlan-function)
- [DrayTek VigorAP OS command injection in apautotest](https://junglewise.ai/threats/cve-2026-71910-draytek-vigorap-os-command-injection-in-apautotest)