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    CVE-2024-34251

    An out-of-bound memory read vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allows a remote attacker to cause a denial of service via the "block_type_get_arity" function in core/iwasm/interpreter/wasm.h.

    Published:May 6, 2024
    Last Modified:Jun 13, 2025
    EPS:May 6, 2024
    EPSS Score:0.00332
    CVSS Score:7.5

    Affected Products

    Vendor
    Bytecodealliance
    Product
    Webassembly Micro Runtime

    Exploits

    https://github.com/bytecodealliance/wasm-micro-runtime/issues/3347https://github.com/bytecodealliance/wasm-micro-runtime/issues/3347

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2025-64713 (CVSS 5.1) — WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime. Prior to version 2.4.…
    CVE-2025-64704 (CVSS 4.7) — WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime. Prior to version 2.4.…
    CVE-2025-58749 (CVSS 2.1) — WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime. In WAMR versions prio…
    CVE-2025-54126 (CVSS 6.9) — The WebAssembly Micro Runtime's (WAMR) iwasm package is the executable binary built with WAMR VMcore which sup…
    CVE-2025-43853 (CVSS 7) — The WebAssembly Micro Runtime's (WAMR) iwasm package is the executable binary built with WAMR VMcore which sup…
    CVE-2024-27532 (CVSS 7.5) — wasm-micro-runtime (aka WebAssembly Micro Runtime or WAMR) 06df58f is vulnerable to NULL Pointer Dereference i…
    CVE-2024-25431 (CVSS 7.8) — An issue in bytecodealliance wasm-micro-runtime before v.b3f728c and fixed in commit 06df58f allows a remote a…
    CVE-2024-34250 (CVSS 6.2) — A heap buffer overflow vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allow…
    CVE-2023-52284 (CVSS 5.5) — Bytecode Alliance wasm-micro-runtime (aka WebAssembly Micro Runtime or WAMR) before 1.3.0 can have an "double …
    CVE-2023-48105 (CVSS 7.5) — An heap overflow vulnerability was discovered in Bytecode alliance wasm-micro-runtime v.1.2.3 allows a remote …

    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