CVE-2026-12221
Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-119
Restricción de operaciones inapropiada dentro de los límites del búfer de la memoria
Fecha de publicación:
15/06/2026
Última modificación:
15/06/2026
Descripción
*** Pendiente de traducción *** A vulnerability was found in Yealink SIP-T46U 108.86.0.118. This impacts the function sprintf of the file /api/upgrade/upgrade of the component Firmware Chunk Upload Handler. Performing a manipulation of the argument uid/start_offset results in stack-based buffer overflow. The attack needs to be approached within the local network. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Impacto
Puntuación base 4.0
7.30
Gravedad 4.0
ALTA
Puntuación base 3.x
8.00
Gravedad 3.x
ALTA
Puntuación base 2.0
7.70
Gravedad 2.0
ALTA



