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    CVE-2025-14956

    A vulnerability was determined in WebAssembly Binaryen up to 125. Affected by this issue is the function WasmBinaryReader::readExport of the file src/wasm/wasm-binary.cpp. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Patch name: 4f52bff8c4075b5630422f902dd92a0af2c9f398. It is recommended to apply a patch to fix this issue.

    Published:Dec 19, 2025
    Last Modified:Feb 24, 2026
    EPS:Dec 19, 2025
    EPSS Score:0.00029
    CVSS Score:5.3

    Affected Products

    Vendor
    Webassembly
    Product
    Binaryen

    Exploits

    https://github.com/WebAssembly/binaryen/issues/8089https://vuldb.com/?submit.717315

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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