CVE-2025-67433

Estado: AplazadaAlta (7.5)—

A heap buffer overflow in the processRequest function of Open TFTP Server MultiThreaded v1.7 allows attackers to cause a Denial of Service (DoS) via a crafted DATA packet.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.41%
Percentil entre todas las CVEs puntuadas: 34
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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access95 %
Impacto principalT1499.004 Application or System Exploitationimpact90 %

Vector CVSS AV:N/AC:L/PR:N/UI:N indica red sin privilegios; CWE-122 (buffer overflow) en servidor TFTP remoto. Descripción explícita de DoS mediante paquete DATA crafted: T1499.004 (application exhaustion).

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

Filter Network Traffic Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Application Isolation and Sandboxing

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Open Tftp Server — Open Tftp Server Multithreaded^AI

CWE

CWE-122

Referencias

JSON original (NVD)

Mostrar

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          "options": [
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          "integrityImpact": "NONE",
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  "published": "2026-02-12T20:16:02.877",
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      "value": "Un desbordamiento de búfer en el heap en la función processRequest de Open TFTP Server MultiThreaded v1.7 permite a los atacantes causar una denegación de servicio (DoS) mediante un paquete DATA manipulado."
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  "lastModified": "2026-06-17T09:57:39.473",
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