Bug 2569568 (CVE-2026-125231)

Summary: CVE-2026-125231 ffmpeg: ffmpeg: Denial of Service via crafted audio stream
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bbrownin
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in FFmpeg. An attacker could exploit this vulnerability by tricking a user or system into processing a specially crafted audio file with malformed stream metadata. This improper handling triggers a NULL pointer dereference in the audio decoder, causing the application to crash and resulting in a Denial of Service (DoS).
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Description OSIDB Bzimport 2026-11-10 13:05:04 UTC
FFmpeg 4.4 through 9.0.2 contains a NULL pointer dereference vulnerability in libavcodec/adxdec.c because adx_decode_header() updates the channel layout before validating the sample rate. Attackers can supply a crafted ADX/AAX stream with mid-stream new-extradata side data carrying an invalid sample rate, causing adx_decode() to write through NULL plane pointers and crash the application.