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CVE-2006-3431

Estado: ModificadaAlta (7.5)—💥 Exploit

Desbordamiento de búfer en ciertas versiones en lengua asiática de Microsoft Excel podrían permitir a atacantes asistidos por usuario ejecutar código arbitrario a través de un registro STYLE manipulado en una hoja de cálculo que desencadena el desbordamiento cuando el usuario trata de reparar el documento o selecciona la opción "Style", como se demuestra por nanika.xls. NOTA: Microsoft ha confirmado a CVE a través de e-mail que esta vulnerabilidad es diferente a las otras vulnerabilidades Excel anunciadas antes del 07-07-2006, incluyendo CVE-2006-3059 y CVE-2006-3086.

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).

💥 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)

Microsoft — Excel

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2006-3431",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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  },
  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
            }
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        }
      ]
    }
  ],
  "published": "2006-07-07T18:05:00.000",
  "references": [
    {
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      "source": "cve@mitre.org"
    },
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer overflow in certain Asian language versions of Microsoft Excel might allow user-assisted attackers to execute arbitrary code via a crafted STYLE record in a spreadsheet that triggers the overflow when the user attempts to repair the document or selects the \"Style\" option, as demonstrated by nanika.xls.  NOTE: Microsoft has confirmed to CVE via e-mail that this is different than the other Excel vulnerabilities announced before 20060707, including CVE-2006-3059 and CVE-2006-3086."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de búfer en ciertas versiones en lengua asiática de Microsoft Excel podrían permitir a atacantes asistidos por usuario ejecutar código arbitrario a través de un registro STYLE manipulado en una hoja de cálculo que desencadena el desbordamiento cuando el usuario trata de reparar el documento o selecciona la opción \"Style\", como se demuestra por nanika.xls. NOTA: Microsoft ha confirmado a CVE a través de e-mail que esta vulnerabilidad es diferente a las otras vulnerabilidades Excel anunciadas antes del 07-07-2006, incluyendo CVE-2006-3059 y CVE-2006-3086."
    }
  ],
  "lastModified": "2026-06-16T22:27:03.150",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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            }
          ],
          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}