CVE-2021-23159

Name: CVE-2021-23159
Creator: NVD / NIST
Published: 2022-08-25T20:15:08.923+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2021-23159 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A vulnerability was found in SoX, where a heap-buffer-overflow occurs in function lsx_read_w_buf() in formats_i.c file. The vulnerability is exploitable with a crafted file, that could cause an application to crash.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

A vulnerability was found in SoX, where a heap-buffer-overflow occurs in function lsx_read_w_buf() in formats_i.c file. The vulnerability is exploitable with a crafted file, that could cause an application to crash.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.46%

36.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Sound Exchange Project	Sound Exchange	14.4.2-7

References

https://access.redhat.com/security/cve/CVE-2021-23159Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1975671Issue Tracking, Third Party Advisory
https://security.archlinux.org/CVE-2021-23159Third Party Advisory
https://sourceforge.net/p/sox/bugs/352/Exploit, Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-23159Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1975671Issue Tracking, Third Party Advisory
https://security.archlinux.org/CVE-2021-23159Third Party Advisory
https://sourceforge.net/p/sox/bugs/352/Exploit, Third Party Advisory

Timeline

Published: Aug 25, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-23159?

How severe is CVE-2021-23159?

CVE-2021-23159 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23159?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-23159?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST