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CVE-2023-2861

Estado: ModificadaAlta (7.1)—

A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.

CVSS

Probabilidad de explotación (EPSS)

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).

Tecnologías afectadas (1)

Qemu — Qemu

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-2861",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "poc"
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          "timestamp": "2024-01-24T16:40:48.930612Z"
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  "published": "2023-12-06T07:15:41.430",
  "references": [
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      "tags": [
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "patrick@puiterwijk.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
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  "descriptions": [
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      "lang": "en",
      "value": "A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en la implementación del sistema de archivos de paso 9p (9pfs) en QEMU. El servidor 9pfs no prohibía la apertura de archivos especiales en el lado del host, lo que potencialmente permitía que un cliente malicioso escapara del árbol 9p exportado creando y abriendo un archivo de dispositivo en la carpeta compartida."
    }
  ],
  "lastModified": "2026-06-17T05:53:38.917",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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}