🛡️ CVE-2025-64713
🟡 CVSS 5.1 — Medium ⚠️ Exploit Public CWE-119 NVD
5.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime. Prior to version 2.4.4, an out-of-bounds array access issue exists in WAMR's fast interpreter mode during WASM bytecode loading. When frame_ref_bottom and frame_offset_bottom arrays are at capacity and a GET_GLOBAL(I32) opcode is encountered, frame_ref_bottom is expanded but frame_offset_bottom may not be. If this is immediately followed by an if opcode that triggers preserve_local_for_block, the function traverses arrays using stack_cell_num as the upper bound, causing out-of-bounds access to frame_offset_bottom since it wasn't expanded to match the increased stack_cell_num. This issue has been patched in version 2.4.4.

Details

Severity MEDIUM
CVSS Score 5.1
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-119
Public Exploit ⚠️ Yes
Source NVD
Published 2025-11-25
Updated 2026-06-02
Modified 2025-12-03
Fix URL N/A

Affected Packages

Software From version Fixed in
webassembly-micro-runtime — 2.4.4

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