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    CVE-2025-15411

    A weakness has been identified in WebAssembly wabt up to 1.0.39. This vulnerability affects the function wabt::AST::InsertNode of the file /src/repro/wabt/bin/wasm-decompile of the component wasm-decompile. This manipulation causes memory corruption. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be used for attacks. Unfortunately, the project has no active maintainer at the moment. In a reply to the issue report somebody recommended to the researcher to provide a PR himself.

    Published:Jan 1, 2026
    Last Modified:Feb 23, 2026
    EPS:Jan 1, 2026
    EPSS Score:0.00031
    CVSS Score:5.3

    Affected Products

    Vendor
    Webassembly
    Product
    Wabt

    Exploits

    https://github.com/WebAssembly/wabt/issues/2679https://github.com/oneafter/1208/blob/main/af1

    Related CVEs

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    CVE-2025-6274 (CVSS 1.9) — A vulnerability was found in WebAssembly wabt up to 1.0.37. It has been classified as problematic. Affected is…
    CVE-2025-6273 (CVSS 1.9) — A vulnerability was found in WebAssembly wabt up to 1.0.37 and classified as problematic. This issue affects t…
    CVE-2025-3122 (CVSS 2.3) — A vulnerability classified as problematic was found in WebAssembly wabt 1.0.36. Affected by this vulnerability…
    CVE-2025-2584 (CVSS 2.3) — A vulnerability was found in WebAssembly wabt 1.0.36. It has been declared as critical. This vulnerability aff…
    CVE-2025-2368 (CVSS 5.3) — A vulnerability was found in WebAssembly wabt 1.0.36 and classified as critical. This issue affects the functi…
    CVE-2023-27119 (CVSS 5.5) — WebAssembly v1.0.29 was discovered to contain a segmentation fault via the component wabt::Decompiler::WrapChi…
    CVE-2022-43280 (CVSS 7.1) — wasm-interp v1.0.29 was discovered to contain an out-of-bounds read via the component OnReturnCallExpr->GetRet…
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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