CVE-2026-71921

CriticalCVSS 9.8/10Last modified Oct 13, 2026

Description

Multiple DrayTek VigorSwitch models contain a pre-authentication command injection vulnerability in the setget.cgi interface. The vulnerability is caused by insufficient filtering of the pass field before command execution. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands with root privileges.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-78

Affected software

No affected versions have been published.

Timeline

Published
Aug 24, 2026
Last modified
Oct 13, 2026
NVD status
Deferred

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CVE-2026-71921: Critical severity, CVSS 9.8 | Vulnix