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CVE-2012-2551

Estado: ModificadaMedia (5)—

El servidor de Kerberos en Microsoft Windows Server 2008 R2 y R2 SP1 y Windows 7 Gold y SP1, permite a atacantes remotos provocar una denegación de servicio (desreferencia puntero nulo y reinicio del sistema) a través de una solicitud de sesión manipulada, también conocido como "Vulnerabilidad de desreferencia NULL en Kerberos"

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-2012-2551",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2012-10-09T21:55:02.893",
  "references": [
    {
      "url": "http://secunia.com/advisories/50867",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/55778",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id?1027620",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA12-283A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-069",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15674",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://secunia.com/advisories/50867",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/55778",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1027620",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA12-283A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-069",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15674",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The server in Kerberos in Microsoft Windows Server 2008 R2 and R2 SP1, and Windows 7 Gold and SP1, allows remote attackers to cause a denial of service (NULL pointer dereference and reboot) via a crafted session request, aka \"Kerberos NULL Dereference Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "El servidor de Kerberos en Microsoft Windows Server 2008 R2 y R2 SP1 y Windows 7 Gold y SP1, permite a atacantes remotos provocar una denegación de servicio (desreferencia puntero nulo y reinicio del sistema) a través de una solicitud de sesión manipulada, también conocido como \"Vulnerabilidad de desreferencia NULL en Kerberos\""
    }
  ],
  "lastModified": "2026-06-16T23:41:40.283",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_7:*:*:x64:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CE381783-027E-4B6D-B801-59873E5EA483"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_7:*:*:x86:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A2C3594F-7C2C-4E2D-9BC5-F4F89B7BF4D5"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4FA15D65-7C32-4C7A-9915-746AB3F454EE"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "976EFC05-9B37-4661-AD34-4FFDB5AB48E0"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:*:r2:itanium:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B2B19826-5516-4899-9599-F95D0A03FBCD"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4945F25F-2828-4D03-930B-A109BA73E00C"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "evaluatorComment": "Per: http://cwe.mitre.org/data/definitions/476.html\r\n\r\n'CWE-476: NULL Pointer Dereference'",
  "sourceIdentifier": "secure@microsoft.com"
}