Segmentation Fault Vulnerability in WebAssembly Micro Runtime by Bytecode Alliance
CVE-2025-64704

4.7MEDIUM

Key Information:

Vendor

Bytecodealliance

Status
Wasm-micro-runtime
Vendor
CVE Published:
25 November 2025

What is CVE-2025-64704?

A segmentation fault vulnerability exists in the WebAssembly Micro Runtime (WAMR) related to the improper handling of the v128.store instruction. This flaw can lead to unstable runtime behavior and potential disruptions in service. The vulnerability affects all versions prior to 2.4.4 and has been addressed in the latest patch release. Users are strongly advised to upgrade to version 2.4.4 or later to mitigate any potential risks associated with this issue.

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Deploy the Patch

Affected Version(s)

wasm-micro-runtime < 2.4.4

References

https://github.com/bytecodealliance/wasm-micro-runtime/se...
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https://github.com/bytecodealliance/wasm-micro-runtime/re...
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CVSS V3.1

Score:
4.7
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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