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CVE-2011-1986

Estado: ModificadaAlta (9.3)—

Use-after-free vulnerability in Microsoft Excel 2003 SP3 allows remote attackers to execute arbitrary code via a crafted spreadsheet, aka "Excel Use after Free WriteAV 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 — Excel

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2011-1986",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "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": "2011-09-15T12:26:48.837",
  "references": [
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA11-256A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-072",
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12345",
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA11-256A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-072",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12345",
      "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": "Use-after-free vulnerability in Microsoft Excel 2003 SP3 allows remote attackers to execute arbitrary code via a crafted spreadsheet, aka \"Excel Use after Free WriteAV Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de uso después de liberación en Microsoft Excel 2003 SP3 permite a atacantes remotos ejecutar código de su elección a través de una hoja de cálculo debidamente modificada. Es un problema también conocido como \"Vulnerabilidad de uso después de liberación de WriteAV en Excel.\""
    }
  ],
  "lastModified": "2026-06-16T23:30:33.157",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:excel:2003:sp3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CEBB33CD-CACF-4EB8-8B5F-8E1CB8D7A440"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}