Vulnerabilities CVE-2026-71921

CVE-2026-71921

Critical

Open

TLP:CLEAR

DrayTek VigorSwitch Multiple Models Pre-Authentication OS Command Injection via setget.cgi

NVD CVE.org

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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.

Details

CVSS Score: 9.3
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
Confidence: 90%
Published: Aug 24, 2026
Last Modified: Aug 24, 2026

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