EUVD-2026-64997

Multiple DrayTek VigorSwitch models contain a buffer overflow vulnerability in the switchlangvrp 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...

CVE-2026-71938

Multiple DrayTek VigorSwitch models contain a buffer overflow in the switch_lan_gvrp function, caused by unsafe copying of the portList field into an undersized buffer. A remote attacker with valid administrative credentials for the device's web management interface can trigger the vulnerability ...