Cyber Resilience

CVE-2021-34185

HighPublic PoC

Published: 25 June 2021

Published
25 June 2021
Modified
26 August 2025
KEV Added
—
Patch
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CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0018 39.3th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-34185 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Mackron Miniaudio. Its CVSS base score is 7.8 (High).

Operationally, ranked at the 39.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Miniaudio 0.10.35 has an integer-based buffer overflow caused by an out-of-bounds left shift in drwav_bytes_to_u32 in miniaudio.h

CWE(s)
CWE-120

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

mackron
miniaudio
0.10.35

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References