CVE Feed

    Dashboard / CVE / CVE-2025-58749

    CVE-2025-58749

    WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime. In WAMR versions prior to 2.4.2, when running in LLVM-JIT mode, the runtime cannot exit normally when executing WebAssembly programs containing a memory.fill instruction where the first operand (memory address pointer) is greater than or equal to 2147483648 bytes (2GiB). This causes the runtime to hang in release builds or crash in debug builds due to accessing an invalid pointer. The issue does not occur in FAST-JIT mode or other runtime tools. This has been fixed in version 2.4.2.

    Published:Sep 16, 2025
    Last Modified:Sep 20, 2025
    EPS:Sep 16, 2025
    EPSS Score:0.00037
    CVSS Score:5.3

    Affected Products

    Vendor
    Bytecodealliance
    Product
    Webassembly Micro Runtime

    Exploits

    https://github.com/bytecodealliance/wasm-micro-runtime/security/advisories/GHSA-xj5p-r8jq-pw47https://github.com/bytecodealliance/wasm-micro-runtime/security/advisories/GHSA-xj5p-r8jq-pw47

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-129 Pointer Manipulation
    CAPEC-92 Forced Integer Overflow

    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-2025-54126 (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-2024-34251 (CVSS 7.5) — An out-of-bound memory read vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which …
    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