Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-71937

Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-120 Copia de búfer sin comprobación del tamaño de entrada (Desbordamiento de búfer clásico)
Fecha de publicación:
24/08/2026
Última modificación:
24/08/2026

Descripción

*** Pendiente de traducción *** Multiple DrayTek VigorSwitch models contain a buffer overflow vulnerability in the poe_schedule_profile function. The vulnerability is caused by repeated concatenation of the start_date, start_time, duration_time, how_often, weekdays, monthly_date, and cycle_duration fields into small fixed-size buffers without proper length checks. 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.