CVE-2006-3493

Status: ModifiedMedium (5.1)—💥 Exploit

Buffer overflow in LsCreateLine function (mso_203) in mso.dll and mso9.dll, as used by Microsoft Word and possibly other products in Microsoft Office 2003, 2002, and 2000, allows remote user-assisted attackers to cause a denial of service (crash) via a crafted Word DOC or other Office file type. NOTE: this issue was originally reported to allow code execution, but on 20060710 Microsoft stated that code execution is not possible, and the original researcher agrees.

CVSS

Version: 2.0
Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P
Base score: 5.1

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 40%
Percentile among all scored CVEs: 99
Score date: 10/11/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · Microsoft Word 2000/2003 - Unchecked Boundary Condition (7/10/2006)

Affected technologies (1)

Microsoft — Office

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2006-3493",
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          "baseScore": 5.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "HIGH",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
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  "published": "2006-07-10T22:05:00.000",
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      "value": "Buffer overflow in LsCreateLine function (mso_203) in mso.dll and mso9.dll, as used by Microsoft Word and possibly other products in Microsoft Office 2003, 2002, and 2000, allows remote user-assisted attackers to cause a denial of service (crash) via a crafted Word DOC or other Office file type.  NOTE: this issue was originally reported to allow code execution, but on 20060710 Microsoft stated that code execution is not possible, and the original researcher agrees."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de búfer en la función LsCreateLine (mso_203) en mso.dll y mso9.dll, tal como se utiliza en Microsoft Word y posiblemente en otros productos en Microsoft Office 2003, 2002 y 2000, permite a atacantes remotos asistidos por usuario provocar una denegación de servicio (caída) a través de un documento Word manipulado u otro tipo de archivo Office. NOTA: este problema fue originalmente reportado para permitir ejecución de código, pero el 10-07-2006 Microsoft declaró que la ejecución de código no es posible y el investigador original está de acuerdo."
    }
  ],
  "lastModified": "2026-06-16T22:27:10.903",
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}