What is CVE-2020-18781?

CVE-2020-18781 is a medium-severity vulnerability in Audiofile, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2023-08-22.

How severe is CVE-2020-18781?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in Audiofile

CVE-2020-18781

Heap buffer overflow vulnerability in FilePOSIX::read in File.cpp in audiofile 0.3.6 may cause denial-of-service via a crafted wav file, this bug can be triggered by the executable sfconvert.

Vulnerability class: Buffer Overflow

Published 2023-08-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (19.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Audiofile — versions 0.3.6

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/mpruett/audiofile/issues/56 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-18781?: CVE-2020-18781 is a medium-severity vulnerability in Audiofile, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2023-08-22.
How severe is CVE-2020-18781?: Medium severity. CVSS v3 base score is 5.5 out of 10.