High severity8.8NVD Advisory· Published Apr 14, 2022· Updated Jun 17, 2026

CVE-2021-40426

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

FFmpeg/libsoxllm-create
Range: = 14.4.2 and master commit 42b3557e
osv-coords5 versions
pkg:rpm/opensuse/sox&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/sox&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/sox&distro=openSUSE%20Tumbleweed pkg:rpm/suse/sox&distro=SUSE%20Package%20Hub%2015%20SP4 pkg:rpm/suse/sox&distro=SUSE%20Package%20Hub%2015%20SP5
< 14.4.2-bp154.2.3.1+ 4 more
- (no CPE)range: < 14.4.2-bp154.2.3.1
- (no CPE)range: < 14.4.2-bp155.3.3.1
- (no CPE)range: < 14.4.2-8.1
- (no CPE)range: < 14.4.2-bp154.2.3.1
- (no CPE)range: < 14.4.2-bp155.3.3.1
Sound Exchange/libsoxv5
Range: 14.4.2

Patches

Vulnerability mechanics

References

talosintelligence.com/vulnerability_reports/TALOS-2021-1434nvdExploitThird Party Advisory
www.openwall.com/lists/oss-security/2023/02/03/3nvd
lists.debian.org/debian-lts-announce/2023/02/msg00009.htmlnvd
www.debian.org/security/2023/dsa-5356nvd

News mentions

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cvss	0.572
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000