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    CVE-2006-5270

    Integer overflow in the Microsoft Malware Protection Engine (mpengine.dll), as used by Windows Live OneCare, Antigen, Defender, and Forefront Security, allows user-assisted remote attackers to execute arbitrary code via a crafted PDF file.

    Published:Feb 13, 2007
    Last Modified:Apr 23, 2026
    EPS:Feb 13, 2007
    EPSS Score:0.50982
    CVSS Score:9.3

    Affected Products

    Vendor
    Microsoft
    Product
    Antigen
    Vendor
    Microsoft
    Product
    Forefront Security
    Vendor
    Microsoft
    Product
    Malware Protection Engine
    Vendor
    Microsoft
    Product
    Windows Defender
    Vendor
    Microsoft
    Product
    Windows Live Onecare

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High