Medium severity · published Oct 15, 2026
CVE-2026-111157
SoX through 14.4.2 Heap Out-of-Bounds Write via MS ADPCM WAV Decoding
6.1
CVSS
0.1%
EPSS
No
On KEV
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().
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SO
sox · SoX
through 14.4.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-111157
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-111157
github.com
https://github.com/chirlu/sox/blob/42b3557e13e0fe01a83465b672d89faddbe65f49/src/adpcm.c#L144-L166
github.com
https://github.com/chirlu/sox/blob/42b3557e13e0fe01a83465b672d89faddbe65f49/src/wav.c#L250-L251
hackmd.io
https://hackmd.io/@haind-pwn/sox-wav-ms-adpcm-samplesperblock-oob-write
sourceforge.net
https://sourceforge.net/projects/sox/
www.vulncheck.com
https://www.vulncheck.com/advisories/sox-through-14.4.2-heap-out-of-bounds-write-via-ms-adpcm-wav-decoding
More from sox
–
CVE-2004-0557
Multiple buffer overflows in the st_wavstartread function in wav.c for Sound eXchange (SoX) 12.17.2 through 12.17.4 allow remote attackers to execute arbitrary code via certain…