CVE-2021-40426

8.8 highEPSS 2.1%

High (8.8) in sound exchange project sound exchange. EPSS 2.1% chance of exploitation in the next 30 days.

A heap-based buffer overflow vulnerability exists in the sphere.c start_read() functionality of Sound Exchange libsox 14.4.2 and master commit 42b3557e. A specially-crafted file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 2.1% chance of exploitation in the next 30 days; higher than 81% of CVEs (scores of 2026-10-31)
CWEs: CWE-122, CWE-787
Published: 2022-04-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

sound_exchange_project:sound_exchange

References

http://www.openwall.com/lists/oss-security/2023/02/03/3
https://lists.debian.org/debian-lts-announce/2023/02/msg00009.html
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1434
https://www.debian.org/security/2023/dsa-5356
http://www.openwall.com/lists/oss-security/2023/02/03/3

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