CVE-2025-64704

MEDIUMNVD 4.74.7—Elevated

4.7

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.

CVSS v3: 4.7
EG Score: 4.7(medium)
EPSS: 5.6%
KEV: Not listed

Published

November 25, 2025

Last Modified

December 3, 2025

References (3)

security-advisories@githubhttps://github.com/bytecodealliance/wasm-micro-runtime/releases/tag/WAMR-2.4.4
security-advisories@githubhttps://github.com/bytecodealliance/wasm-micro-runtime/security/advisories/GHSA-2f2p-wf5w-82qr
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/bytecodealliance/wasm-micro-runtime/security/advisories/GHSA-2f2p-wf5w-82qr

Vendor Advisories for CVE-2025-64704(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

CVE-2025-64704
Microsoft Security Response Center (MSRC)Medium
WebAssembly Micro Runtime vulnerable to a segmentation fault in v128.store instruction

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-754

Data Freshness Timeline

(refreshed 10× in last 7d / 10× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:13 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 18:51 UTCEG score recompute
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-64704?

CVE-2025-64704 is a medium vulnerability published on November 25, 2025. 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.

When was CVE-2025-64704 disclosed?

CVE-2025-64704 was first published in the National Vulnerability Database on November 25, 2025, with the most recent update on December 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-64704 actively exploited?

CVE-2025-64704 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-64704?

CVE-2025-64704 has a CVSS v3 base score of 4.7 (NVD).

How do I remediate CVE-2025-64704?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-64704, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-64704

📅 Published

🔄 Last Modified

🔗 References (3)

📣 Vendor Advisories for CVE-2025-64704(1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)