---
id: CVE-2026-122328
title: >-
  SDL_mixer 3.1.2 through 3.2.4 Stack-based Buffer Overflow via FetchXLaw() in
  WAV Decoder
summary: >-
  SDL_mixer 3.1.2 through 3.2.4 contains a stack-based buffer overflow
  vulnerability in FetchXLaw() of src/decoder_wav.c when decoding A-law or
  mu-law WAV files. Attackers can supply a crafted WAV file whose doubly-offset
  float expansion o…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-121
vendor: libsdl-org
product: SDL_mixer
affected:
  - SDL_mixer >= 3.1.2 <= 3.2.4
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T15:11:47.143Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-122328'
references:
  - url: 'https://github.com/libsdl-org/SDL_mixer/issues/907'
  - url: 'https://github.com/libsdl-org/SDL_mixer/pull/910'
  - url: >-
      https://github.com/libsdl-org/SDL_mixer/commit/df966f698e18ae849bd92796a26311e79c555718
  - url: >-
      https://github.com/libsdl-org/SDL_mixer/blob/release-3.2.4/src/decoder_wav.c#L750-761
  - url: >-
      https://github.com/libsdl-org/SDL_mixer/blob/release-3.2.4/src/decoder_wav.c#L1658-1659
  - url: 'https://hackmd.io/@haindpwn/sdl-mixer-fetchxlaw-stack-overflow'
  - url: 'https://github.com/libsdl-org/SDL_mixer'
  - url: >-
      https://www.vulncheck.com/advisories/sdl-mixer-3.1.2-through-3.2.4-stack-based-buffer-overflow-via-fetchxlaw-in-wav-decoder
    label: >-
      VulnCheck Advisory: SDL_mixer 3.1.2 through 3.2.4 Stack-based Buffer
      Overflow via FetchXLaw() in WAV Decoder
tags:
  - cve.org
ingestedAt: '2026-11-05T21:36:00.892Z'
epss: 0.0016
epssPercentile: 0.05146
---

## Overview

SDL_mixer 3.1.2 through 3.2.4 contains a stack-based buffer overflow vulnerability in FetchXLaw() of src/decoder_wav.c when decoding A-law or mu-law WAV files. Attackers can supply a crafted WAV file whose doubly-offset float expansion overwrites about 1 KB of adjacent stack memory, causing crashes or potentially code execution.

## Affected

- `SDL_mixer >= 3.1.2 <= 3.2.4`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.