CVE-2026-53904

Gravedad CVSS v4.0:

MEDIA

Tipo:

No Disponible / Otro tipo

Fecha de publicación:

01/07/2026

Última modificación:

06/07/2026

Descripción

*** Pendiente de traducción *** MCO is vulnerable to Account Denial of Service due to improper implementation of password reset functionality. Each password reset request invalidates previously set password as well as previously issued temporary passwords, furthermore, password resets are not limited in any way. An attacker who provides victim&#39;s email and answer to their security question, can successfully initiate the reset process and continuously invalidate credentials, effectively locking the victim out of their account. Answering security questions has a limited number of tries which lowers the risk of this vulnerability.<br /> <br /> Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 25.3.3.1 but may also affect other versions.

Impacto

Vector 4.0

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS v4.0 Severidad y Métricas:

Puntuación base: 6.30 MEDIA
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vector de acceso (AV): A través de red
Complejidad de acceso (AC): Alto
Attack Requirements (AT): Ninguno
Privilegios Requeridos (PR): Ninguno
Interacción del usuario (UI): Ninguno
Confidentiality (VC): Ninguno
Integrity (VI): Ninguno
Availability (VA): Bajo
Confidentiality (SC): Ninguno
Integrity (SI): Ninguno
Availability (SA): Ninguno

Puntuación base 4.0

6.30

Gravedad 4.0

MEDIA

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H CVSS v3.1 Severidad y Métricas:

Puntuación base: 7.10 ALTA
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

Vector de acceso (AV): A través de red
Complejidad de acceso (AC): Bajo
Privilegios Requeridos (PR): Bajo
Interacción del usuario (UI): Ninguno
Alcance (S): Sin modificar
Impacto a la confidencialidad (C): Bajo
Impacto a la integridad (I): Ninguno
Impacto a la disponibilidad (A): Alto