CVE-2026-32837
CVE-2026-32837 is a medium-severity vulnerability in Mackron Miniaudio with a CVSS 3.x base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-170.
Key facts
- Severity: Medium (CVSS 3.x base score 4.0)
- CVSS v4: 5.1
- EPSS exploit prediction: 0% (14th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-12633
- Weakness: CWE-170
- Affected product: Mackron Miniaudio
- Published:
- Last modified:
Description
miniaudio version 0.11.25 and earlier (fixed in commits 1df46ae and 1df46ae) contain a heap out-of-bounds read vulnerability in the WAV BEXT metadata parser that allows attackers to trigger memory access violations by processing crafted WAV files. Attackers can exploit improper null-termination handling in the coding history field to cause out-of-bounds reads past the allocated metadata pool, resulting in application crashes or denial of service.
Frequently asked questions
- What is CVE-2026-32837?
- miniaudio version 0.11.25 and earlier (fixed in commits 1df46ae and 1df46ae) contain a heap out-of-bounds read vulnerability in the WAV BEXT metadata parser that allows attackers to trigger memory access violations by processing crafted WAV files. Attackers can exploit improper null-termination handling in the coding history field to cause out-of-bounds reads past the allocated metadata pool, resulting in application crashes or denial of service.
- How severe is CVE-2026-32837?
- CVE-2026-32837 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
- Is CVE-2026-32837 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-32837?
- CVE-2026-32837 affects Mackron Miniaudio. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-32837?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-32837 have an EU (EUVD) identifier?
- Yes. CVE-2026-32837 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12633.
- When was CVE-2026-32837 published?
- CVE-2026-32837 was published on 2026-03-17 and last updated on 2026-06-17.
References
- https://github.com/mackron/dr_libs/commit/04e40d66a7ba1632f93ec1328d4b42ad986e3ee0
- https://github.com/mackron/miniaudio/commit/1df46ae9a0eed5aa9f58b179d2cc4af5d23f8bde
- https://github.com/mackron/miniaudio/issues/1101
- https://www.vulncheck.com/advisories/mackron-miniaudio-out-of-bounds-read-in-bext-coding-history-parsing
Affected products (1)
- cpe:2.3:a:mackron:miniaudio:*:*:*:*:*:*:*:*
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