How severe is CVE-2021-33844?

CVE-2021-33844 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-2021-33844 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33844?

CVE-2021-33844 affects Sound Exchange Project Sound Exchange. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-33844?

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

When was CVE-2021-33844 published?

CVE-2021-33844 was published on 2022-08-25 and last updated on 2026-06-17.

CVE-2021-33844

CVE-2021-33844 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-369.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-369
Affected product: Sound Exchange Project Sound Exchange
Published: 2022-08-25
Last modified: 2026-06-17

Description

A floating point exception (divide-by-zero) issue was discovered in SoX in functon startread() of wav.c file. An attacker with a crafted wav file, could cause an application to crash.

Frequently asked questions

What is CVE-2021-33844?: A floating point exception (divide-by-zero) issue was discovered in SoX in functon startread() of wav.c file. An attacker with a crafted wav file, could cause an application to crash.
How severe is CVE-2021-33844?: CVE-2021-33844 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-2021-33844 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33844?: CVE-2021-33844 affects Sound Exchange Project Sound Exchange. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-33844?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-33844 published?: CVE-2021-33844 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…

All CVEs affecting Sound Exchange Project Sound Exchange →

Other CWE-369 (Divide By Zero) vulnerabilities

CVE-2021-32494 — Critical (CVSS 10.0): Radare2 has a division by zero vulnerability in Mach-O parser's rebase_buffer function. This allow attackers to create…
CVE-2017-11720 — Critical (CVSS 9.8): There is a division-by-zero vulnerability in LAME 3.99.5, caused by a malformed input file.
CVE-2020-20892 — High (CVSS 8.8): An issue was discovered in function filter_frame in libavfilter/vf_lenscorrection.c in Ffmpeg 4.2.1, allows attackers…
CVE-2025-4637 — High (CVSS 8.7): Divide By Zero vulnerability in davisking dlib allows remote attackers to cause a denial of service via a crafted…
CVE-2026-37232 — High (CVSS 8.6): An issue was discovered in OpenAirInterface5G 2.4.0 (nr-softmodem) in the E2SM-KPM RAN Function's PRB utilization…
CVE-2024-26945 — High (CVSS 8.4): In the Linux kernel, the following vulnerability has been resolved: crypto: iaa - Fix nr_cpus < nr_iaa case If…

Browse all CWE-369 (Divide By Zero) vulnerabilities →