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CVE-2009-3676

Estado: ModificadaAlta (7.1)—

El cliente SMB en el kernel de Microsoft Windows Server 2008 R2 y Windows 7 permite que los servidores SMB remotos y los atacantes de tipo man-in-the-middle generen una denegación de servicio (bucle infinito y bloqueo del sistema) por medio de un (1) paquete de respuesta SMBv1 o (2) SMBv2 que contenga (a) un paquete de respuesta SMBv2 (1) valor de longitud inapropiado en un encabezado NetBIOS o (b) un campo de longitud adicional al final de este paquete de respuesta, también se conoce como "SMB Client Incomplete Response Vulnerability".

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 (2)

Microsoft — Windows 7Microsoft — Windows Server 2008

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2009-3676",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-11-13T15:30:00.733",
  "references": [
    {
      "url": "http://blogs.technet.com/msrc/archive/2009/11/13/microsoft-security-advisory-977544-released.aspx",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://g-laurent.blogspot.com/2009/11/windows-7-server-2008r2-remote-kernel.html",
      "tags": [
        "Exploit"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://news.cnet.com/8301-27080_3-10395891-245.html",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://praetorianprefect.com/archives/2009/11/how-to-crash-windows-7-and-server-2008/",
      "tags": [
        "Exploit"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://seclists.org/fulldisclosure/2009/Nov/134",
      "tags": [
        "Exploit"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://secunia.com/advisories/37347",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://secunia.com/blog/66/",
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      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.microsoft.com/technet/security/advisory/977544.mspx",
      "tags": [
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      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id?1023179",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA10-103A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2009/3216",
      "tags": [
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      "source": "secure@microsoft.com"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-020",
      "source": "secure@microsoft.com"
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    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7186",
      "source": "secure@microsoft.com"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://g-laurent.blogspot.com/2009/11/windows-7-server-2008r2-remote-kernel.html",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
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    },
    {
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/blog/66/",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "tags": [
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        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1023179",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA10-103A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2009/3216",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-020",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7186",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-399"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The SMB client in the kernel in Microsoft Windows Server 2008 R2 and Windows 7 allows remote SMB servers and man-in-the-middle attackers to cause a denial of service (infinite loop and system hang) via a (1) SMBv1 or (2) SMBv2 response packet that contains (a) an incorrect length value in a NetBIOS header or (b) an additional length field at the end of this response packet, aka \"SMB Client Incomplete Response Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "El cliente SMB en el kernel de Microsoft Windows Server 2008 R2 y Windows 7 permite que los servidores SMB remotos y los atacantes de tipo man-in-the-middle generen una denegación de servicio (bucle infinito y bloqueo del sistema) por medio de un (1) paquete de respuesta SMBv1 o (2) SMBv2 que contenga (a) un paquete de respuesta SMBv2 (1) valor de longitud inapropiado en un encabezado NetBIOS o (b) un campo de longitud adicional al final de este paquete de respuesta, también se conoce como \"SMB Client Incomplete Response Vulnerability\"."
    }
  ],
  "lastModified": "2026-06-16T23:12:08.950",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_7:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D56B932B-9593-44E2-B610-E4EB2143EB21"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "36559BC0-44D7-48B3-86FF-1BFF0257B5ED"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}