CVE-2026-111157: Memory Corruption (CVSS 6.1)

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().

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CVSS v3.1 Score

6.1

MEDIUM

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

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

References

Other References

https://github.com/chirlu/sox/blob/42b3557e13e0fe01a83465b672d89faddbe65f49/src/adpcm.c#L144-L166 https://github.com/chirlu/sox/blob/42b3557e13e0fe01a83465b672d89faddbe65f49/src/wav.c#L250-L251 https://hackmd.io/@haind-pwn/sox-wav-ms-adpcm-samplesperblock-oob-write https://sourceforge.net/projects/sox/ https://www.vulncheck.com/advisories/sox-through-14.4.2-heap-out-of-bounds-write-via-ms-adpcm-wav-decoding

Frequently Asked Questions

What is CVE-2026-111157? +

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(). It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2026-111157? +

CVE-2026-111157 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2026-111157? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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