Security Advisory

CVE-2026-71931

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-24 17:07:57

Last updated 2026-08-27 13:51:25

Assigner VulnCheck

CVSS score 8.6

State PUBLISHED

Description

Multiple DrayTek VigorSwitch models contain a command injection vulnerability in the tftp_upgrade function. The vulnerability is caused by insufficient filtering before the filename field is concatenated into a 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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