Out-of-bounds Write Affecting ffmpeg package, versions <7:7.1.5-0+deb13u1+e2


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

Social Trends
EPSS
0.33% (26th percentile)

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  • Snyk IDSNYK-ECHOLATEST-FFMPEG-18234767
  • published23 Jul 2026
  • disclosed22 Jul 2026

Introduced: 22 Jul 2026

NewCVE-2026-64835  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Echo:latest ffmpeg to version 7:7.1.5-0+deb13u1+e2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ffmpeg package and not the ffmpeg package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1