CVE-2025-64713
5.1 · MEDIUMOverview
CVE-2025-64713 is a medium-severity vulnerability affecting bytecodealliance webassembly_micro_runtime. It was published on November 25, 2025 and has a CVSS 3.1 base score of 5.1 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.1, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from bytecodealliance. Update webassembly_micro_runtime to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| bytecodealliance | webassembly_micro_runtime | >= 0, < 2.4.4 | Affected |
Frequently Asked Questions
What is CVE-2025-64713?
CVE-2025-64713 is a medium-severity vulnerability affecting bytecodealliance webassembly_micro_runtime. It was published on November 25, 2025 and has a CVSS 3.1 base score of 5.1 (MEDIUM).
How severe is CVE-2025-64713?
This vulnerability has a CVSS 3.1 base score of 5.1, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-64713?
Check the references section for vendor advisories and patches from bytecodealliance. Update webassembly_micro_runtime to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-64713?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-64713 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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