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CVE-2021-33844

21
FAUCET Score

CVE-2021-33844 describes a floating-point exception (divide-by-zero) vulnerability in the SoX sound processing tool, specifically within the startread() function of the wav.c file. An attacker could exploit this by providing a specially crafted WAV file, leading to an application crash. This vulnerability has a CVSS score of 5.5 (Medium), indicating it can be triggered locally with low attack complexity and user interaction, resulting in high availability impact (denial of service). There is no evidence of active exploitation, publicly available exploit code in frameworks like Metasploit or Nuclei, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
14.4.2-7CPE matchmatch criteria
cpe:2.3:a:sound_exchange_project:sound_exchange:14.4.2-7:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.46%
Probability of exploitation in next 30 days
EPSS Percentile
37.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0046 is in the 43rd percentile among its peer group of 5,765 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux AI (RHEL AI)Fixed in: sox

Vendor Advisories (1)

redhatCVE-2021-33844Low

SoX: divide by zero crash in wav.c

Apr 20, 2021

References

access.redhat.com / security/cve/CVE-2021-33844
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
security.archlinux.org / CVE-2021-33844
Third Party Advisory
sourceforge.net / p/sox/bugs/349
ExploitThird Party Advisory