CVE-2025-7338

Estado: AplazadaAlta (7.5)—

Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability that is present starting in version 1.4.4-lts.1 and prior to version 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.2 to receive a patch. No known workarounds are available.

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: 0.71%
Percentil entre todas las CVEs puntuadas: 52
Fecha de la puntuación: 5/10/2026

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 access85 %
Impacto principalT1499.004 Application or System Exploitationimpact90 %

Vector CVSS AV:N/AC:L/PR:N indica explotación remota sin privilegios (T1190). Malformed request causa crash de proceso = DoS (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.

Expressjs — Multer^AI

CWE

CWE-248

Referencias

JSON original (NVD)

Mostrar

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          "options": [
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          "timestamp": "2025-07-17T16:48:34.245218Z"
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          "integrityImpact": "NONE",
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          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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      "lang": "en",
      "value": "Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability that is present starting in version 1.4.4-lts.1 and prior to version 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.2 to receive a patch. No known workarounds are available."
    },
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      "lang": "es",
      "value": "Multer es un middleware de Node.js para gestionar `multipart/form-data`. Una vulnerabilidad presente a partir de la versión 1.4.4-lts.1 y anteriores a la 2.0.2 permite a un atacante activar una denegación de servicio (DoS) mediante el envío de una solicitud de carga multiparte malformada. Esta solicitud provoca una excepción no controlada, lo que provoca un bloqueo del proceso. Los usuarios deben actualizar a la versión 2.0.2 para recibir un parche. No se conocen soluciones alternativas."
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  "lastModified": "2026-06-17T10:04:45.080",
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