CVE-2026-111157: sox Out-of-bounds Write
Vulnerability summary
CVE-2026-111157 is a medium (CVSS 6.9) Out-of-bounds Write vulnerability in sox. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.3% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 15-10-2026PublishedVulnerability first disclosed.
- 16-10-2026Last modifiedVulnerability information updated.
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 metrics
7 scores · 4 sources · 2 versions- NVDNIST6.9MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- OSV · UbuntuEcosystem advisory · calculated6.9MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
- NVDNIST6.1MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
EPSS trend
Probability
0.13%
Chance of exploitation in the next 30 days
Percentile
2%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (hackmd.io)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- soxAll versions (No fix recorded)
Sox1 product
- sox≤ 14.4.2
Ubuntu1 product
- soxAll versions (No fix recorded)
3 vendors · 3 products
References
8 links- github.com/chirlu/sox/blob/42b3557e13e0fe01a83465b672d89faddbe65f49/src/adpcm.cTechnical DescriptionREPORT
- github.com/chirlu/sox/blob/42b3557e13e0fe01a83465b672d89faddbe65f49/src/wav.cTechnical DescriptionREPORT
- www.vulncheck.com/advisories/sox-through-14.4.2-heap-out-of-bounds-write-via-ms-adpcm-wav-decodingThird Party AdvisoryREPORT
