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CVE-2016-2853

Estado: ModificadaAlta (7.8)—Exploit
Gravedad7.8Alta · CVSS 3.1
Probabilidad de explotación0.91 %mayor que el 59 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoDisponiblePublicado en Exploit-DB

El módulo aufs para el kernel de Linux 3.x y 4.x no restringe correctamente el espacio de nombres de montaje, lo que permite a usuarios locales obtener privilegos montando un sistema de archivos aufs sobre un sistema de archivos FUSE y luego ejecutando un programa setuid manipulado.

CVSS

Puntuación base
7.8
Versión
3.1
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
0.91 %
Percentil entre todas las CVEs puntuadas
59
Fecha de la puntuación
20/10/2026

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).

Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

Mostrar las 10 referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2016-2853",
  "cveTags": [],
  "metrics": {
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          "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
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        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.4,
        "obtainUserPrivilege": false,
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  "affected": [
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  "published": "2016-05-02T10:59:33.160",
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      "url": "http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/",
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-269"
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      ]
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    {
      "lang": "en",
      "value": "The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program."
    },
    {
      "lang": "es",
      "value": "El módulo aufs para el kernel de Linux 3.x y 4.x no restringe correctamente el espacio de nombres de montaje, lo que permite a usuarios locales obtener privilegos montando un sistema de archivos aufs sobre un sistema de archivos FUSE y luego ejecutando un programa setuid manipulado."
    }
  ],
  "lastModified": "2026-06-17T00:44:35.753",
  "configurations": [
    {
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}