High severity7.2NVD Advisory· Published Aug 24, 2026· Updated Aug 26, 2026

CVE-2026-71913

Description

Multiple DrayTek VigorAP models contain a command injection vulnerability in the upload_settings.cgi interface. The vulnerability is caused by insufficient filtering before the restorekey field is concatenated into a shell command. 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.

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Affected products

Draytek/VigorAPllm-fuzzy

Patches

Vulnerability mechanics

References

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

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