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    CVE-2026-63279

    LibreOffice can import PICT images, which may be embedded in documents. An out of bounds read existed when importing an image that uses a colour palette. The palette index held in the image data was used without being checked against the number of entries the palette has, so an index past the last entry read memory outside the palette. In fixed versions the palette index is limited to the entries present.

    Published:Sep 22, 2026
    Last Modified:Sep 22, 2026
    EPS:Sep 22, 2026
    EPSS Score:
    CVSS Score:5.4

    Affected Products

    Vendor
    The Document Foundation
    Product
    Libreoffice

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    CVE-2026-63277 (CVSS 8.5) — LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. A do…
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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