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    CVE-2026-111677

    Antiword through 0.37 contains a heap out-of-bounds read vulnerability in vGet8LstInfo in prop8.c caused by an inverted bounds check on the PlcfLst record count. Attackers can supply a crafted Word 8 .doc file claiming up to 0xffff LSTF records in a tiny buffer, causing reads past the heap allocation that crash the process.

    Published:Oct 16, 2026
    Last Modified:Oct 20, 2026
    EPS:Oct 16, 2026
    EPSS Score:0.00196
    CVSS Score:5.5

    Affected Products

    Vendor
    Adri Van Os
    Product
    Antiword
    Vendor
    Antiword Project
    Product
    Antiword

    Exploits

    https://hackmd.io/@haindpwn/antiword-word8-plcflst-count-and-fkp-run-oob-readhttps://hackmd.io/@haindpwn/antiword-word8-plcflst-count-and-fkp-run-oob-read

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    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