Out-of-bounds Write Affecting ffmpeg package, versions <7:4.4.2-0ubuntu0.22.04.1+esm15


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.19% (10th percentile)

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  • Snyk IDSNYK-UBUNTU2204-FFMPEG-18323523
  • published28 Aug 2026
  • disclosed23 Jul 2026

Introduced: 23 Jul 2026

CVE-2026-65703  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Ubuntu:22.04 ffmpeg to version 7:4.4.2-0ubuntu0.22.04.1+esm15 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 Ubuntu. See How to fix? for Ubuntu:22.04 relevant fixed versions and status.

FFmpeg versions 2.7 through 8.1.2 contain an out-of-bounds write vulnerability in the TDSC video decoder that allows remote attackers to cause heap corruption by supplying a crafted AVI file that changes frame dimensions across TDSF frames. The tdsc_parse_tdsf() function fails to unreference the existing reference frame before calling av_frame_get_buffer(), causing tdsc_blit() and tdsc_yuv2rgb() to write attacker-controlled pixel data beyond the end of the undersized reference frame buffer, resulting in a process crash and potential code execution.

CVSS Base Scores

version 3.1