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CVE-2016-3227

Estado: ModificadaCrítica (9.8)—

Vulnerabilidad de uso después de liberación de memoria en el componente DNS Server en Microsoft Windows Server 2012 Gold y R2 permite a atacantes remotos ejecutar código arbitrario a través de una petición manipulada, también conocida como "Windows DNS Server Use After Free 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 (1)

Microsoft — Windows Server 2012

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-3227",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-06-16T01:59:29.967",
  "references": [
    {
      "url": "http://www.securitytracker.com/id/1036095",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-071",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1036095",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-071",
      "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": "Use-after-free vulnerability in the DNS Server component in Microsoft Windows Server 2012 Gold and R2 allows remote attackers to execute arbitrary code via crafted requests, aka \"Windows DNS Server Use After Free Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de uso después de liberación de memoria en el componente DNS Server en Microsoft Windows Server 2012 Gold y R2 permite a atacantes remotos ejecutar código arbitrario a través de una petición manipulada, también conocida como \"Windows DNS Server Use After Free Vulnerability.\""
    }
  ],
  "lastModified": "2026-06-17T00:45:19.917",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:gold:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AB506484-7F0C-46BF-8EA6-4FB5AF454CED"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:datacenter:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "32BCD530-F6E2-4F9B-AD4C-7DF2BED00296"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:essentials:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A1318333-EF3A-4DBA-8DD7-367BF843F70D"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:standard:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "74B5E7C1-6C1D-4605-91CF-AF105EFA678D"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "evaluatorComment": "<a href=\"http://cwe.mitre.org/data/definitions/416.html\">CWE-416: Use After Free</a>",
  "sourceIdentifier": "secure@microsoft.com"
}