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CVE-2026-70632

CVE-2026-70632 · FFmpeg 4.4 < 9.0 Heap Out-of-Bounds Write in CFHD Decoder via AVI Demuxing

This page contains facts from public vulnerability sources. Check the original advisory before updating.

FFmpeg versions from 4.4 up to, but not including, 9.0 contain an out-of-bounds heap write vulnerability in the native GoPro CineForm HD (CFHD) decoder that allows remote attackers to corrupt heap memory by supplying a crafted AVI file during stream probing. The cfhd_decode() function fails to enforce the non-Bayer logical output-width invariant in the transform-type-2 reconstruction path, causing horiz_filter_clip() to write oversized 16-bit sample rows far beyond the allocated output frame buffer, which can be escalated to arbitrary code execution via overwrite of a live cleanup callback pointer.

CVSS 8.5 · High · EPSS 0.2% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • ffmpeg

    Versions
    • ≥ 4.4, < 9.0: Affected (custom)

    Update to 9.0

  • ffmpeg Debian:12

    Versions
    • 7:5.1.3-1
    • 7:5.1.3-2
    • 7:5.1.4-0+deb12u1
    • 7:5.1.5-0+deb12u1
    • 7:5.1.6-0+deb12u1
    • 7:5.1.7-0+deb12u1
    • 7:5.1.8-0+deb12u1
    • 7:5.1.9-0+deb12u1
    • 7:6.0-1
    • 7:6.0-2
    • 7:6.0-3
    • 7:6.0-4
    • 7:6.0-5
    • 7:6.0-6
    • 7:6.0-7
    • 7:6.0-8
    • 7:6.0-9
    • 7:6.1-1
    • 7:6.1-2
    • 7:6.1-3
    • 7:6.1-4
    • 7:6.1-5
    • 7:6.1.1-1
    • 7:6.1.1-2
    • 7:6.1.1-3
    • 7:6.1.1-4
    • 7:6.1.1-5
    • 7:7.0-1
    • 7:7.0.1-1
    • 7:7.0.1-2
    • 7:7.0.1-3
    • 7:7.0.1-4
    • 7:7.0.1-5
    • 7:7.0.2-1
    • 7:7.0.2-2
    • 7:7.0.2-3
    • 7:7.1-1
    • 7:7.1-2
    • 7:7.1-3
    • 7:7.1-4
    • 7:7.1.1-1
    • 7:7.1.2-1
    • 7:7.1.3-1
    • 7:8.0-1
    • 7:8.0-2
    • 7:8.0.1-1
    • 7:8.0.1-2
    • 7:8.0.1-3
    • 7:8.1-1
    • 7:8.1-2
    • 7:8.1-3
    • 7:8.1.1-1
    • 7:8.1.1-2
    • 7:8.1.1-3
    • 7:8.1.1-4
    • 7:8.1.2-1
    • 7:8.1.2-2
    • 7:9.0-1
    • 7:9.0.1-1
    • 7:9.0.2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • ffmpeg Debian:13

    Versions
    • 7:7.1.1-1
    • 7:7.1.2-0+deb13u1
    • 7:7.1.2-1
    • 7:7.1.3-0+deb13u1
    • 7:7.1.3-1
    • 7:7.1.4-0+deb13u1
    • 7:7.1.5-0+deb13u1
    • 7:8.0-1
    • 7:8.0-2
    • 7:8.0.1-1
    • 7:8.0.1-2
    • 7:8.0.1-3
    • 7:8.1-1
    • 7:8.1-2
    • 7:8.1-3
    • 7:8.1.1-1
    • 7:8.1.1-2
    • 7:8.1.1-3
    • 7:8.1.1-4
    • 7:8.1.2-1
    • 7:8.1.2-2
    • 7:9.0-1
    • 7:9.0.1-1
    • 7:9.0.2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • ffmpeg Debian:14

    Versions
    • 7:7.1.1-1
    • 7:7.1.2-1
    • 7:7.1.3-1
    • 7:8.0-1
    • 7:8.0-2
    • 7:8.0.1-1
    • 7:8.0.1-2
    • 7:8.0.1-3
    • 7:8.1-1
    • 7:8.1-2
    • 7:8.1-3
    • 7:8.1.1-1
    • 7:8.1.1-2
    • 7:8.1.1-3
    • 7:8.1.1-4
    • 7:8.1.2-1
    • 7:8.1.2-2
    • 7:9.0-1
    • 7:9.0.1-1
    Affected ranges
    • ECOSYSTEM: < 7:9.0.2-1

    Update to 7:9.0.2-1

  • libav Ubuntu:Pro:14.04:LTS

    Versions
    • 6:0.8.7-1ubuntu2
    • 6:9.10-1ubuntu1
    • 6:9.10-1ubuntu2
    • 6:9.10-1ubuntu5
    • 6:9.10-1ubuntu6
    • 6:9.10-1ubuntu7
    • 6:9.11-2ubuntu1
    • 6:9.11-2ubuntu2
    • 6:9.13-0ubuntu0.14.04.1
    • 6:9.14-0ubuntu0.14.04.1
    • 6:9.16-0ubuntu0.14.04.1
    • 6:9.18-0ubuntu0.14.04.1
    • 6:9.20-0ubuntu0.14.04.1
    • 6:9.20-0ubuntu0.14.04.1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • ffmpeg Ubuntu:Pro:22.04:LTS

    Versions
    • 7:4.4-6ubuntu5
    • 7:4.4.1-2ubuntu1
    • 7:4.4.1-3ubuntu1
    • 7:4.4.1-3ubuntu2
    • 7:4.4.1-3ubuntu3
    • 7:4.4.1-3ubuntu5
    • 7:4.4.2-0ubuntu0.22.04.1
    • 7:4.4.2-0ubuntu0.22.04.1+esm1
    • 7:4.4.2-0ubuntu0.22.04.1+esm2
    • 7:4.4.2-0ubuntu0.22.04.1+esm3
    • 7:4.4.2-0ubuntu0.22.04.1+esm4
    • 7:4.4.2-0ubuntu0.22.04.1+esm5
    • 7:4.4.2-0ubuntu0.22.04.1+esm6
    • 7:4.4.2-0ubuntu0.22.04.1+esm7
    • 7:4.4.2-0ubuntu0.22.04.1+esm8
    • 7:4.4.2-0ubuntu0.22.04.1+esm9
    • 7:4.4.2-0ubuntu0.22.04.1+esm10
    • 7:4.4.2-0ubuntu0.22.04.1+esm11
    • 7:4.4.2-0ubuntu0.22.04.1+esm12
    • 7:4.4.2-0ubuntu0.22.04.1+esm13
    Affected ranges
    • ECOSYSTEM: < 7:4.4.2-0ubuntu0.22.04.1+esm14

    Update to 7:4.4.2-0ubuntu0.22.04.1+esm14

  • ffmpeg Ubuntu:Pro:24.04:LTS

    Versions
    • 7:6.0-6ubuntu1
    • 7:6.0-9ubuntu1
    • 7:6.1-2ubuntu1
    • 7:6.1-3ubuntu1
    • 7:6.1-4ubuntu1
    • 7:6.1-5ubuntu1
    • 7:6.1.1-1ubuntu1
    • 7:6.1.1-3ubuntu1
    • 7:6.1.1-3ubuntu5
    • 7:6.1.1-3ubuntu5+esm1
    • 7:6.1.1-3ubuntu5+esm2
    • 7:6.1.1-3ubuntu5+esm3
    • 7:6.1.1-3ubuntu5+esm4
    • 7:6.1.1-3ubuntu5+esm5
    • 7:6.1.1-3ubuntu5+esm6
    • 7:6.1.1-3ubuntu5+esm7
    • 7:6.1.1-3ubuntu5+esm8
    • 7:6.1.1-3ubuntu5+esm10
    • 7:6.1.1-3ubuntu5+esm11
    Affected ranges
    • ECOSYSTEM: < 7:6.1.1-3ubuntu5+esm12

    Update to 7:6.1.1-3ubuntu5+esm12

  • ffmpeg Ubuntu:26.10

    Versions
    • 7:8.0.1-3ubuntu2
    • 7:8.1-3ubuntu3
    • 7:8.1.2-2ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • ffmpeg Ubuntu:Pro:26.04:LTS

    Versions
    • 7:7.1.1-1ubuntu4
    • 7:7.1.2-1ubuntu3
    • 7:7.1.2-1ubuntu4
    • 7:7.1.3-1ubuntu1
    • 7:8.0.1-2ubuntu1
    • 7:8.0.1-3ubuntu1
    • 7:8.0.1-3ubuntu2
    • 7:8.0.1-3ubuntu2+esm1
    Affected ranges
    • ECOSYSTEM: < 7:8.0.1-3ubuntu2+esm3

    Update to 7:8.0.1-3ubuntu2+esm3

Original sources

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