SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-23172

A vulnerability was found in SoX, where a heap-buffer-overflow occurs in function startread() in hcom.c file.

MEDIUM 5.5EPSS 0.46%

Does this matter?

Lower severity and a low EPSS score (0.46%). Track it; it rarely justifies an emergency change on its own.

Description

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

CVSS 3.1
5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
0.46% probability · 40th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-120, CWE-787
Affected
sound exchange project/sound exchange
Source
secalert@redhat.com
EPSS trend
0%3%5%26 October 2026: 0.46%26 October 202626 October 2026

EPSS 0.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.