CVE-2009-0238

Estado: AnalizadaAlta (8.8)⚠ Explotación activa

Microsoft Office Excel 2000 SP3, 2002 SP3, 2003 SP3, and 2007 SP1; Excel Viewer 2003 Gold and SP3; Excel Viewer; Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1; and Excel in Microsoft Office 2004 and 2008 for Mac allow remote attackers to execute arbitrary code via a crafted Excel document that triggers an access attempt on an invalid object, as exploited in the wild in February 2009 by Trojan.Mdropper.AC.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Puntuación base: 8.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 43%
Percentil entre todas las CVEs puntuadas: 99
Fecha de la puntuación: 3/10/2026

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).

CISA KEV — explotada activamente

Añadida al catálogo: 14/4/2026
Plazo de remediación: 28/4/2026
Uso conocido en ransomware: Unknown

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1203 Exploitation for Client Executionexecution95 %
Impacto principalT1059 Command and Scripting Interpreterexecution90 %

Documento Excel malformado requiere interacción del usuario (UI:R). Ejecución de código arbitrario confirmada por explotación activa en febrero 2009 (Trojan.Mdropper.AC).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Restrict Web-Based Content Privileged Account Management Limit Software Installation Execution Prevention Behavior Prevention on Endpoint Disable or Remove Feature or Program

Tecnologías afectadas (5)

Microsoft — Excel Microsoft — Excel Viewer Microsoft — Office Microsoft — Office Compatibility Pack Microsoft — Office Excel Viewer

CWE

CWE-94
CWE-94

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2009-0238",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2009-0238",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "active"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-14T00:00:00+00:00"
        }
      }
    ],
    "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": true,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-02-25T16:30:00.343",
  "references": [
    {
      "url": "http://blogs.zdnet.com/security/?p=2658",
      "tags": [
        "Broken Link"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://isc.sans.org/diary.html?storyid=5923",
      "tags": [
        "Press/Media Coverage"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://securitytracker.com/id?1021744",
      "tags": [
        "Broken Link"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.microsoft.com/technet/security/advisory/968272.mspx",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/33870",
      "tags": [
        "Broken Link"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.symantec.com/business/security_response/writeup.jsp?docid=2009-022310-4202-99",
      "tags": [
        "Broken Link"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA09-104A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2009/1023",
      "tags": [
        "Broken Link"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-009",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/48875",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5968",
      "tags": [
        "Broken Link"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "http://blogs.zdnet.com/security/?p=2658",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://isc.sans.org/diary.html?storyid=5923",
      "tags": [
        "Press/Media Coverage"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://securitytracker.com/id?1021744",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.microsoft.com/technet/security/advisory/968272.mspx",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/33870",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.symantec.com/business/security_response/writeup.jsp?docid=2009-022310-4202-99",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.us-cert.gov/cas/techalerts/TA09-104A.html",
      "tags": [
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2009/1023",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-009",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/48875",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5968",
      "tags": [
        "Broken Link"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-0238",
      "tags": [
        "US Government Resource"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Microsoft Office Excel 2000 SP3, 2002 SP3, 2003 SP3, and 2007 SP1; Excel Viewer 2003 Gold and SP3; Excel Viewer; Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1; and Excel in Microsoft Office 2004 and 2008 for Mac allow remote attackers to execute arbitrary code via a crafted Excel document that triggers an access attempt on an invalid object, as exploited in the wild in February 2009 by Trojan.Mdropper.AC."
    },
    {
      "lang": "es",
      "value": "Microsoft Office Excel 2000 SP3, 2002 SP3, 2003 SP3 y 2007 SP1; Excel Viewer 2003 Gold y SP3; Excel Viewer; Compatibility Pack para Word, Excel y PowerPoint 2007 File Formats SP1; y Excel de Microsoft Office 2004 y 2008 para Mac; permiten a atacantes remotos ejecutar código de su elección a través de un documento Excel manipulado que provoca un intento de acceso a un objeto no válido, tal y como se ha explotado libremente en Febrero 2009 por MDropper.XR."
    }
  ],
  "lastModified": "2026-06-16T23:04:33.880",
  "cisaActionDue": "2026-04-28",
  "cisaExploitAdd": "2026-04-14",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:excel:2000:sp3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "439B26BA-376C-4D6B-B7BA-B66B8BDA8E37"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:excel:2002:sp3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "896E23B1-AB34-43FF-96F3-BA6ED7F162AF"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:excel:2003:sp3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CEBB33CD-CACF-4EB8-8B5F-8E1CB8D7A440"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:excel:2007:sp1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F703901F-AD7C-42E7-BBFA-529A8C510D83"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:excel_viewer:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "971EC323-267F-4DAF-BA3B-10A47A9F1ADA"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office:2004:*:*:*:*:macos:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0B191155-67F2-4C6E-BD0C-AF5AF6F04BA1"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office:2008:*:*:*:*:macos:*:*",
              "vulnerable": true,
              "matchCriteriaId": "421ACF1B-1B21-4416-98ED-BAA5C210EAE5"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_compatibility_pack:2007:sp1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C5C94F2C-786B-45E4-B80A-FC668D917014"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_excel_viewer:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4A2613CE-C469-43AE-A590-87CE1FAADA8B"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_excel_viewer:2003:sp3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B18C291F-57C2-4328-8FCF-3C1A27B0D18D"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com",
  "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
  "cisaVulnerabilityName": "Microsoft Office Remote Code Execution"
}