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    CVE-2021-47876

    GeoGebra Classic 5.0.631.0-d contains a denial of service vulnerability in the input field that allows attackers to crash the application by sending oversized buffer content. Attackers can generate a large buffer of 800,000 repeated characters and paste it into the 'Entrada:' input field to trigger an application crash.

    Published:Jan 21, 2026
    Last Modified:Apr 15, 2026
    EPS:Jan 21, 2026
    EPSS Score:0.00042
    CVSS Score:7.5

    Affected Products

    Vendor
    Geogebra
    Product
    Classic

    Exploits

    No exploit reference

    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