CVE-2025-53899

Estado: AnalizadaAlta (7.2)—

Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, the back-end of Kiteworks MFT is vulnerable to an incorrectly specified destination in a communication channel which allows an attacker with administrative privileges on the system under certain circumstances to intercept upstream communication which could lead to an escalation of privileges. This issue has been patched in version 9.1.0.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.2

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.94%
Percentil entre todas las CVEs puntuadas: 60
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement85 %
Impacto principalT1068 Exploitation for Privilege Escalationprivilege escalation80 %
Impacto secundarioT1557 Adversary-in-the-Middlecredential access · collection75 %

Acceso remoto a servicio Kiteworks MFT por admin local (PR:H, AV:N) permite interceptar comunicación upstream (CWE-941, canal mal especificado) escalando privilegios y posicionándose como MITM.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence Program Network Segmentation Disable or Remove Feature or Program Application Isolation and Sandboxing Exploit Protection Update Software

Tecnologías afectadas (1)

Accellion — Kiteworks Managed File Transfer

CWE

CWE-941

Referencias

https://github.com/kiteworks/security-advisories/security/advisories/GHSA-5gx5-vcpp-8cr5

JSON original (NVD)

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