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    CVE-2026-4430

    Out-of-bounds write vulnerability in The Document Foundation LibreOffice via crafted OOXML documents with mismatched encryption salt parameters. This issue affects LibreOffice: from 26.2 before 26.2.3, from 25.8 before 25.8.7.

    Published:May 7, 2026
    Last Modified:May 8, 2026
    EPS:May 7, 2026
    EPSS Score:0.00009
    CVSS Score:7.8

    Affected Products

    Vendor
    Libreoffice
    Product
    Libreoffice
    Vendor
    The Document Foundation
    Product
    Libreoffice

    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