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Vulnerable Software

Vulnerability Details CVE-2026-64835

FFmpeg versions 4.4 through 8.1.2 contain an out-of-bounds memory access vulnerability in the ADX audio decoder within libavcodec/adxdec.c that allows attackers to trigger both out-of-bounds reads and writes by supplying a crafted ADX or AAX audio file with a mid-stream channel layout change. When AV_PKT_DATA_NEW_EXTRADATA side data is received mid-stream, the adx_decode_frame function re-parses the stream header but fails to update the internal channel state, causing subsequent decoding operations to access the prev[] state array using a stale channel count.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 27.3%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2026-64835
  • Ffmpeg » Ffmpeg » Version: 4.4
    cpe:2.3:a:ffmpeg:ffmpeg:4.4
  • Ffmpeg » Ffmpeg » Version: 4.4.1
    cpe:2.3:a:ffmpeg:ffmpeg:4.4.1
  • Ffmpeg » Ffmpeg » Version: 4.4.2
    cpe:2.3:a:ffmpeg:ffmpeg:4.4.2
  • Ffmpeg » Ffmpeg » Version: 4.4.3
    cpe:2.3:a:ffmpeg:ffmpeg:4.4.3
  • Ffmpeg » Ffmpeg » Version: 4.4.4
    cpe:2.3:a:ffmpeg:ffmpeg:4.4.4
  • Ffmpeg » Ffmpeg » Version: 4.4.5
    cpe:2.3:a:ffmpeg:ffmpeg:4.4.5
  • Ffmpeg » Ffmpeg » Version: 4.4.6
    cpe:2.3:a:ffmpeg:ffmpeg:4.4.6
  • Ffmpeg » Ffmpeg » Version: 4.5
    cpe:2.3:a:ffmpeg:ffmpeg:4.5
  • Ffmpeg » Ffmpeg » Version: 5.0
    cpe:2.3:a:ffmpeg:ffmpeg:5.0
  • Ffmpeg » Ffmpeg » Version: 5.0.1
    cpe:2.3:a:ffmpeg:ffmpeg:5.0.1
  • Ffmpeg » Ffmpeg » Version: 5.0.2
    cpe:2.3:a:ffmpeg:ffmpeg:5.0.2
  • Ffmpeg » Ffmpeg » Version: 5.0.3
    cpe:2.3:a:ffmpeg:ffmpeg:5.0.3
  • Ffmpeg » Ffmpeg » Version: 5.1
    cpe:2.3:a:ffmpeg:ffmpeg:5.1
  • Ffmpeg » Ffmpeg » Version: 5.1.1
    cpe:2.3:a:ffmpeg:ffmpeg:5.1.1
  • Ffmpeg » Ffmpeg » Version: 5.1.2
    cpe:2.3:a:ffmpeg:ffmpeg:5.1.2
  • Ffmpeg » Ffmpeg » Version: 5.1.3
    cpe:2.3:a:ffmpeg:ffmpeg:5.1.3
  • Ffmpeg » Ffmpeg » Version: 5.1.4
    cpe:2.3:a:ffmpeg:ffmpeg:5.1.4
  • Ffmpeg » Ffmpeg » Version: 5.1.5
    cpe:2.3:a:ffmpeg:ffmpeg:5.1.5
  • Ffmpeg » Ffmpeg » Version: 5.1.6
    cpe:2.3:a:ffmpeg:ffmpeg:5.1.6
  • Ffmpeg » Ffmpeg » Version: 5.1.7
    cpe:2.3:a:ffmpeg:ffmpeg:5.1.7
  • Ffmpeg » Ffmpeg » Version: 5.1.8
    cpe:2.3:a:ffmpeg:ffmpeg:5.1.8
  • Ffmpeg » Ffmpeg » Version: 5.2
    cpe:2.3:a:ffmpeg:ffmpeg:5.2
  • Ffmpeg » Ffmpeg » Version: 6.0
    cpe:2.3:a:ffmpeg:ffmpeg:6.0
  • Ffmpeg » Ffmpeg » Version: 6.0.1
    cpe:2.3:a:ffmpeg:ffmpeg:6.0.1
  • Ffmpeg » Ffmpeg » Version: 6.1
    cpe:2.3:a:ffmpeg:ffmpeg:6.1
  • Ffmpeg » Ffmpeg » Version: 6.1.1
    cpe:2.3:a:ffmpeg:ffmpeg:6.1.1
  • Ffmpeg » Ffmpeg » Version: 6.1.2
    cpe:2.3:a:ffmpeg:ffmpeg:6.1.2
  • Ffmpeg » Ffmpeg » Version: 6.1.3
    cpe:2.3:a:ffmpeg:ffmpeg:6.1.3
  • Ffmpeg » Ffmpeg » Version: 6.1.4
    cpe:2.3:a:ffmpeg:ffmpeg:6.1.4
  • Ffmpeg » Ffmpeg » Version: 6.2
    cpe:2.3:a:ffmpeg:ffmpeg:6.2
  • Ffmpeg » Ffmpeg » Version: 7.0
    cpe:2.3:a:ffmpeg:ffmpeg:7.0
  • Ffmpeg » Ffmpeg » Version: 7.0.1
    cpe:2.3:a:ffmpeg:ffmpeg:7.0.1
  • Ffmpeg » Ffmpeg » Version: 7.0.2
    cpe:2.3:a:ffmpeg:ffmpeg:7.0.2
  • Ffmpeg » Ffmpeg » Version: 7.0.3
    cpe:2.3:a:ffmpeg:ffmpeg:7.0.3
  • Ffmpeg » Ffmpeg » Version: 7.1
    cpe:2.3:a:ffmpeg:ffmpeg:7.1
  • Ffmpeg » Ffmpeg » Version: 7.1.1
    cpe:2.3:a:ffmpeg:ffmpeg:7.1.1
  • Ffmpeg » Ffmpeg » Version: 7.1.2
    cpe:2.3:a:ffmpeg:ffmpeg:7.1.2
  • Ffmpeg » Ffmpeg » Version: 7.1.3
    cpe:2.3:a:ffmpeg:ffmpeg:7.1.3
  • Ffmpeg » Ffmpeg » Version: 7.2
    cpe:2.3:a:ffmpeg:ffmpeg:7.2
  • Ffmpeg » Ffmpeg » Version: 8.0
    cpe:2.3:a:ffmpeg:ffmpeg:8.0
  • Ffmpeg » Ffmpeg » Version: 8.0.1
    cpe:2.3:a:ffmpeg:ffmpeg:8.0.1
  • Ffmpeg » Ffmpeg » Version: 8.1
    cpe:2.3:a:ffmpeg:ffmpeg:8.1


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