CVE-2025-64704

MEDIUM 5.5CVE-2025-64704 · Published 25/11/2025 · updated 18/10/2026

In short

CVE-2025-64704 is a MEDIUM (CVSS 5.5) vulnerability affecting webassembly micro runtime (bytecodealliance).
Chance of exploitation in the next 30 days (EPSS): 0.20%, higher than 10.1% of all vulnerabilities.
Fix: update to 2.4.4 or later.

Package	Affected versions	Patched versions
webassembly micro runtime bytecodealliance	`< 2.4.4`	`2.4.4`

Description

WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly (Wasm) runtime. Prior to version 2.4.4, WAMR is susceptible to a segmentation fault in v128.store instruction. This issue has been patched in version 2.4.4.

References

bytecodealliance/wasm-micro-runtime release WAMR-2.4.4 · Release Notes
bytecodealliance/wasm-micro-runtime security advisory · Exploit

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Package

Affected versions

Patched versions

webassembly micro runtime

bytecodealliance

< 2.4.4

2.4.4

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