libsndfile 1.2.2 contains a misaligned memory access issue in psf_binheader_readf() while parsing WAV fmt chunks. A specially crafted WAV file can cause the function to cast an unaligned destination address to unsigned int * and perform a 4-byte store. This results in undefined behavior leading to denial of service.
History

Sun, 27 Sep 2026 11:15:00 +0000

Type Values Removed Values Added
First Time appeared Libsndfile Project
Libsndfile Project libsndfile
Vendors & Products Libsndfile Project
Libsndfile Project libsndfile

Sat, 26 Sep 2026 07:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 25 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-122

Fri, 25 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
Title libsndfile: libsndfile: Denial of Service via misaligned memory access during WAV parsing
Weaknesses CWE-843
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Thu, 24 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
Description libsndfile 1.2.2 contains a misaligned memory access issue in psf_binheader_readf() while parsing WAV fmt chunks. A specially crafted WAV file can cause the function to cast an unaligned destination address to unsigned int * and perform a 4-byte store. This results in undefined behavior leading to denial of service.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-09-24T00:00:00.000Z

Updated: 2026-09-25T16:49:52.546Z

Reserved: 2026-09-10T00:00:00.000Z

Link: CVE-2026-88386

cve-icon Vulnrichment

Updated: 2026-09-25T16:49:47.780Z

cve-icon NVD

Status : Deferred

Published: 2026-09-24T21:18:57.003

Modified: 2026-09-25T17:17:17.833

Link: CVE-2026-88386

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-24T00:00:00Z

Links: CVE-2026-88386 - Bugzilla