How severe is CVE-2021-23172?

CVE-2021-23172 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-23172 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-23172?

CVE-2021-23172 affects Sound Exchange Project Sound Exchange. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-23172?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-23172 published?

CVE-2021-23172 was published on 2022-08-25 and last updated on 2026-06-17.

CVE-2021-23172

CVE-2021-23172 is a medium-severity vulnerability in Sound Exchange Project Sound Exchange with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Sound Exchange Project Sound Exchange
Published: 2022-08-25
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-23172?: 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.
How severe is CVE-2021-23172?: CVE-2021-23172 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-23172 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-23172?: CVE-2021-23172 affects Sound Exchange Project Sound Exchange. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-23172?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-23172 published?: CVE-2021-23172 was published on 2022-08-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sound_exchange_project:sound_exchange:14.4.2-7:*:*:*:*:*:*:*

More vulnerabilities in Sound Exchange Project Sound Exchange

CVE-2021-3643 — Critical (CVSS 9.1): A flaw was found in sox 14.4.1. The lsx_adpcm_init function within libsox leads to a global-buffer-overflow. This flaw…
CVE-2021-40426 — High (CVSS 8.8): A heap-based buffer overflow vulnerability exists in the sphere.c start_read() functionality of Sound Exchange libsox…
CVE-2023-34432 — High (CVSS 7.8): A heap buffer overflow vulnerability was found in sox, in the lsx_readbuf function at sox/src/formats_i.c:98:16. This…
CVE-2023-34318 — High (CVSS 7.8): A heap buffer overflow vulnerability was found in sox, in the startread function at sox/src/hcom.c:160:41. This flaw…
CVE-2017-18189 — High (CVSS 7.5): In the startread function in xa.c in Sound eXchange (SoX) through 14.4.2, a corrupt header specifying zero channels…
CVE-2014-8145 — High (CVSS 7.5): Multiple heap-based buffer overflows in Sound eXchange (SoX) 14.4.1 and earlier allow remote attackers to have…

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