CVE-2025-59465

Estado: ModificadaAlta (7.5)—

Detalles técnicos trazas, registros y código del informe original

A malformed `HTTP/2 HEADERS` frame with oversized, invalid `HPACK` data can cause Node.js to crash by triggering an unhandled `TLSSocket` error `ECONNRESET`. Instead of safely closing the connection, the process crashes, enabling a remote denial of service. This primarily affects applications that do not attach explicit error handlers to secure sockets, for example:
```
server.on('secureConnection', socket => {
  socket.on('error', err => {
    console.log(err)
  })
})
```

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: 4.02%
Percentil entre todas las CVEs puntuadas: 90
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 access95 %
Impacto principalT1499.004 Application or System Exploitationimpact90 %

Vector CVSS AV:N/AC:L/PR:N/UI:N indica explotación remota sin privilegios (T1190). CWE-400 y envío de frame HTTP/2 malformado provoca crash del proceso Node.js, negando el servicio (T1499.004 - aplicación).

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)

Nodejs — Node.js

CWE

CWE-400
CWE-248

Referencias

JSON original (NVD)

Mostrar

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  "published": "2026-01-20T21:16:04.010",
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  "vulnStatus": "Modified",
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
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      "value": "A malformed `HTTP/2 HEADERS` frame with oversized, invalid `HPACK` data can cause Node.js to crash by triggering an unhandled `TLSSocket` error `ECONNRESET`. Instead of safely closing the connection, the process crashes, enabling a remote denial of service. This primarily affects applications that do not attach explicit error handlers to secure sockets, for example:\n```\nserver.on('secureConnection', socket => {\n  socket.on('error', err => {\n    console.log(err)\n  })\n})\n```"
    },
    {
      "lang": "es",
      "value": "Una trama `HTTP/2 HEADERS` malformada con datos `HPACK` sobredimensionados e inválidos puede provocar que Node.js falle al desencadenar un error `ECONNRESET` de `TLSSocket` no manejado. En lugar de cerrar la conexión de forma segura, el proceso falla, lo que permite una denegación de servicio remota. Esto afecta principalmente a las aplicaciones que no adjuntan manejadores de errores explícitos a los sockets seguros, por ejemplo:\n```\nserver.on('secureConnection', socket =&gt; {\n  socket.on('error', err =&gt; {\n    console.log(err)\n  })\n})\n```"
    }
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  "lastModified": "2026-07-15T02:17:30.860",
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