CVE-2025-64704

low-risk
Published 2025-11-25

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.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
LOCAL / HIGH complexity

Affected Products (1)

Webassembly Micro Runtime

Affected Vendors

Bytecodealliance

References (3)

Release Notes https://github.com/bytecodealliance/wasm-micro-runtime/releases/tag/WAMR-2.4.4
Exploit https://github.com/bytecodealliance/wasm-micro-runtime/security/advisories/GHSA-...
Exploit https://github.com/bytecodealliance/wasm-micro-runtime/security/advisories/GHSA-...
17
/ 100
low-risk
Severity 12/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal