A floating point exception (divide-by-zero) issue was discovered in SoX in functon read_samples() of voc.c file. An attacker with a crafted file, could cause an application to crash.
CVE-2021-23210
MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence
Score 5.5 from GitHub Security Advisory published 2022-08-26. NVD baseline CVSS 5.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0
A fix is available — apply it.
- CVSS v3
- 5.5
- EG Score
- 5.5(medium)
- EPSS
- 34.6%
- KEV
- Not listed
Published
August 25, 2022
Last Modified
June 27, 2025
References (8)
- secalert@redhathttps://access.redhat.com/security/cve/CVE-2021-23210
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=1975670
- secalert@redhathttps://security.archlinux.org/CVE-2021-23210
- secalert@redhathttps://sourceforge.net/p/sox/bugs/351/
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2021-23210
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1975670
- af854a3a-2127-422b-91ae-364da2661108https://security.archlinux.org/CVE-2021-23210
- af854a3a-2127-422b-91ae-364da2661108https://sourceforge.net/p/sox/bugs/351/
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libsox-fmt-oss (14.4.2-3ubuntu0.18.04.2) @ bionic | 2026-05-25 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Frequently asked(5)
What is CVE-2021-23210?
CVE-2021-23210 is a medium vulnerability published on August 25, 2022. A floating point exception (divide-by-zero) issue was discovered in SoX in functon read_samples() of voc.c file. An attacker with a crafted file, could cause an application to crash.
When was CVE-2021-23210 disclosed?
CVE-2021-23210 was first published in the National Vulnerability Database on August 25, 2022, with the most recent update on June 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-23210 actively exploited?
CVE-2021-23210 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 34.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-23210?
CVE-2021-23210 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2021-23210?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-23210, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2021-23210
Is Your Infrastructure Affected by CVE-2021-23210?
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