SoX through 14.4.2 contains a heap out-of-bounds write vulnerability in lsx_ms_adpcm_block_expand_i() in src/adpcm.c, triggered by an odd samplesPerBlock value in the WAV fmt chunk. Attackers can supply a crafted MS ADPCM WAV file to sox or any libsox consumer to write a partially controlled 16-bit sample past the heap buffer allocated by wav_ms_adpcm_fmt().

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0013.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
SoX sox unaffected
Version Status Constraints
0 affected ≤ 14.4.2

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/chirlu/sox/blob/42b3557e13e0fe01a83465b672d89faddbe65f49/src/adpcm.c#L144-L166 cve-icon cve-icon cve-icon
https://github.com/chirlu/sox/blob/42b3557e13e0fe01a83465b672d89faddbe65f49/src/wav.c#L250-L251 cve-icon cve-icon cve-icon
https://hackmd.io/@haind-pwn/sox-wav-ms-adpcm-samplesperblock-oob-write cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-111157 cve-icon
https://sourceforge.net/projects/sox/ cve-icon cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-111157 cve-icon
https://www.vulncheck.com/advisories/sox-through-14.4.2-heap-out-of-bounds-write-via-ms-adpcm-wav-decoding cve-icon cve-icon cve-icon
History

Fri, 16 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Fri, 16 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Moderate

Thu, 15 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Description SoX through 14.4.2 contains a heap out-of-bounds write vulnerability in lsx_ms_adpcm_block_expand_i() in src/adpcm.c, triggered by an odd samplesPerBlock value in the WAV fmt chunk. Attackers can supply a crafted MS ADPCM WAV file to sox or any libsox consumer to write a partially controlled 16-bit sample past the heap buffer allocated by wav_ms_adpcm_fmt().
Title SoX through 14.4.2 Heap Out-of-Bounds Write via MS ADPCM WAV Decoding
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-16T17:10:07.533Z

Reserved: 2026-10-15T17:04:02.354Z

Link: CVE-2026-111157

cve-icon Vulnrichment

Updated: 2026-10-16T16:28:15.018Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-15T19:17:30.663

Modified: 2026-10-16T18:17:35.790

Link: CVE-2026-111157

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-15T18:57:46Z

Links: CVE-2026-111157 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-16T06:45:14Z

Weaknesses