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    CVE-2004-0978

    Heap-based buffer overflow in the Hrtbeat.ocx (Heartbeat) ActiveX control for Internet Explorer 5.01 through 6, when users who visit online gaming sites that are associated with MSN, allows remote attackers to execute arbitrary code via the SetupData parameter.

    Published:Oct 21, 2004
    Last Modified:Apr 16, 2026
    EPS:Oct 21, 2004
    EPSS Score:0.42218
    CVSS Score:10

    Affected Products

    Vendor
    Microsoft
    Product
    Internet Explorer
    Vendor
    Microsoft
    Product
    Windows 2000
    Vendor
    Microsoft
    Product
    Windows 98se
    Vendor
    Microsoft
    Product
    Windows Me
    Vendor
    Microsoft
    Product
    Windows Nt
    Vendor
    Microsoft
    Product
    Windows Server 2003
    Vendor
    Microsoft
    Product
    Windows Xp

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    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