Security Advisory

CVE-2026-71938

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-24 17:08:02

Last updated 2026-08-26 16:13:59

Assigner VulnCheck

CVSS score 8.6

State PUBLISHED

Description

Multiple DrayTek VigorSwitch models contain a buffer overflow vulnerability in the switch_lan_gvrp function. The vulnerability is caused by unsafe copying of the portList field into an undersized buffer. A remote attacker can trigger this vulnerability via crafted input, causing a denial of service or potentially executing arbitrary commands. Exploitation requires valid administrative credentials for the device's web management interface.

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