CVE-2021-34184

CRITICALNVD 9.89.8—

9.8

Miniaudio 0.10.35 has a Double free vulnerability that could cause a buffer overflow in ma_default_vfs_close__stdio in miniaudio.h.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 60.0%
KEV: Not listed

Published

June 25, 2021

Last Modified

August 26, 2025

Advisory Details (1)

Auto-updated Jun 3, 2026

No patch confirmed yet.

generic

Double free vulnerability cause buffer overflow · Issue #319 · mackron/miniaudio · GitHub

https://github.com/mackron/miniaudio/issues/319

Weakness Classification(1)

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

CWE-415Double Free

Data Freshness Timeline

(refreshed 12× in last 7d / 20× 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 20:11 UTCepss_batch
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2026-06-01 13:50 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch
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2026-05-26 14:26 UTCEG score recompute
2026-05-26 14:26 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2021-34184?

CVE-2021-34184 is a critical vulnerability published on June 25, 2021. Miniaudio 0.10.35 has a Double free vulnerability that could cause a buffer overflow in madefaultvfsclose_stdio in miniaudio.h.

When was CVE-2021-34184 disclosed?

CVE-2021-34184 was first published in the National Vulnerability Database on June 25, 2021, with the most recent update on August 26, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-34184 actively exploited?

CVE-2021-34184 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 60.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-34184?

CVE-2021-34184 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-34184?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-34184, 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-2021-34184

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Double free vulnerability cause buffer overflow · Issue #319 · mackron/miniaudio · GitHub

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-34184?

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Advisory Details (1)

Frequently asked(5)

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