CVE-2011-2005

Estado: AnalizadaAlta (7.8)⚠ Explotación activa

afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka "Ancillary Function Driver Elevation of Privilege Vulnerability."

CVSS

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

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 32%
Percentil entre todas las CVEs puntuadas: 98
Fecha de la puntuación: 3/10/2026

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).

CISA KEV — explotada activamente

Añadida al catálogo: 28/3/2022
Plazo de remediación: 18/4/2022
Uso conocido en ransomware: Unknown

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1203 Exploitation for Client Executionexecution95 %
Impacto secundarioT1548 Abuse Elevation Control Mechanismprivilege escalation90 %

Explotación corregida por reglas (vector CVSS): era T1068

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

Update Software User Account Management Restrict File and Directory Permissions Privileged Account Management Operating System Configuration Execution Prevention

Tecnologías afectadas (2)

Microsoft — Windows Server 2003 Microsoft — Windows XP

CWE

NVD-CWE-noinfo

Referencias

JSON original (NVD)

Mostrar

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  "published": "2011-10-12T02:52:43.910",
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      "value": "afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka \"Ancillary Function Driver Elevation of Privilege Vulnerability.\""
    },
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      "lang": "es",
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    }
  ],
  "lastModified": "2026-06-16T23:30:35.373",
  "cisaActionDue": "2022-04-18",
  "cisaExploitAdd": "2022-03-28",
  "configurations": [
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}