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High-Risk Buffer Overflow Vulnerabilities in SDL_mixer Audio Library

High-Risk Buffer Overflow Vulnerabilities in SDL_mixer Audio Library

First seen 6 Nov 2026, 01:44 UTC • •
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ThreatCluster AI
ThreatCluster •November 6, 2026 at 01:45 UTC
  • •CVE-2026-122328 and CVE-2026-122329 are high-risk buffer overflow vulnerabilities.
  • •Exploitation requires user interaction to open malicious audio files.
  • •No active exploitation has been reported, but urgent patching is recommended.

Two vulnerabilities, CVE-2026-122328 and CVE-2026-122329, were identified in the SDL_mixer audio library affecting versions 3.1.2 to 3.2.4. Both vulnerabilities are stack-based buffer overflows in the FetchXLaw function, which processes A-law and mu-law encoded audio files. Attackers can exploit these flaws by supplying crafted WAV or AIFF-C files, potentially leading to application crashes or arbitrary code execution. The vulnerabilities have a CVSS score of 8.5, indicating a high risk, but there are currently no reports of active exploitation. Affected applications include desktop games and media tools that utilize the SDL_mixer library. Users are advised to prioritize patching and monitoring for unusual audio file activity. The vulnerabilities were published on November 5, 2026, and patches are expected to be released shortly.

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Timeline

2026-11-05
CVE-2026-122328 and CVE-2026-122329 published
Two critical vulnerabilities in SDL_mixer were disclosed, affecting versions 3.1.2 to 3.2.4.
Redpacketsecurity
2026-11-06
Vulnerabilities reported by independent sources
Multiple articles confirmed the vulnerabilities and their potential impact on audio processing applications.
hackmd.io

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Common questions

Which versions of SDL_mixer are affected?
Versions 3.1.2 through 3.2.4 of SDL_mixer are affected by these vulnerabilities.
Is there any active exploitation of these vulnerabilities?
No active exploitation has been reported as of now, but the vulnerabilities are considered high-risk.
What should I do if I use SDL_mixer?
Prioritize applying patches once they are released and monitor for any unusual audio file activity.