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    CVE-2024-56431

    oc_huff_tree_unpack in huffdec.c in libtheora in Theora through 1.0 7180717 has an invalid negative left shift. NOTE: this is disputed by third parties because there is no evidence of a security impact, e.g., an application would not crash.

    Published:Dec 25, 2024
    Last Modified:May 7, 2025
    EPS:Dec 25, 2024
    EPSS Score:0.11945
    CVSS Score:9.8

    Affected Products

    Vendor
    Xiph
    Product
    Theora

    Exploits

    https://github.com/UnionTech-Software/libtheora-CVE-2024-56431-PoChttps://github.com/UnionTech-Software/libtheora-CVE-2024-56431-PoC

    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