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    CVE-2022-33896

    A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0.5357 parses XML-based office files. A specially-crafted malformed file can cause memory corruption by using memory before buffer start, which can lead to code execution. A victim would need to access a malicious file to trigger this vulnerability.

    Published:Oct 7, 2022
    Last Modified:Apr 15, 2025
    EPS:Oct 7, 2022
    EPSS Score:0.00142
    CVSS Score:7.8

    Affected Products

    Vendor
    Hancom
    Product
    Hancom Office 2020

    Exploits

    https://talosintelligence.com/vulnerability_reports/TALOS-2022-1574https://talosintelligence.com/vulnerability_reports/TALOS-2022-1574

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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