CVE-2021-3246
CVSS v3
8.8
HIGH
EPSS Score
3.3 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A heap buffer overflow vulnerability in msadpcm_decode_block of libsndfile 1.0.30 allows attackers to execute arbitrary code via a crafted WAV file.
Technical details
- Published
- 2021-07-20
Frequently asked questions
What is CVE-2021-3246?
A heap buffer overflow vulnerability in msadpcm_decode_block of libsndfile 1.0.30 allows attackers to execute arbitrary code via a crafted WAV file.
Is CVE-2021-3246 actively exploited?
Active exploitation of CVE-2021-3246 has not been confirmed. Its EPSS score was 3.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-3246?
CVE-2021-3246 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2021-3246 affecting your environment?
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