CVE-2026-107676

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-107676
FFmpeg through 9.0.2 contains an uninitialized memory disclosure vulnerability in av_dynamic_hdr_plus_to_t35() that leaves up to three payload bytes uninitialized when tone_mapping_flag is 0. Attackers can supply crafted Matroska T.35 BlockAdditional or HEVC/AV1 SEI metadata so that remuxing or transcoding writes leaked process memory into output files.

3.3 /10

CVSS v3 : LOW

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/2c2f6e96e31795ae95a8f8323a493ffbc493111f Patch
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24590 Issue Tracking Patch
https://ffmpeg.org/ Product
https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavutil/hdr_dynamic_metadata.c#L374-L385 Product
https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-uninitialized-memory-disclosure-via-hdr10-metadata-serializer Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
History

14 Oct 2026, 23:55

Type Values Removed Values Added
CPE cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
First Time Ffmpeg
Ffmpeg ffmpeg
References () https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/2c2f6e96e31795ae95a8f8323a493ffbc493111f - () https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/2c2f6e96e31795ae95a8f8323a493ffbc493111f - Patch
References () https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24590 - () https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24590 - Issue Tracking, Patch
References () https://ffmpeg.org/ - () https://ffmpeg.org/ - Product
References () https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavutil/hdr_dynamic_metadata.c#L374-L385 - () https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavutil/hdr_dynamic_metadata.c#L374-L385 - Product
References () https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-uninitialized-memory-disclosure-via-hdr10-metadata-serializer - () https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-uninitialized-memory-disclosure-via-hdr10-metadata-serializer - Third Party Advisory

08 Oct 2026, 16:17

Type Values Removed Values Added
New CVE
Information

Published : 2026-10-08 16:17

Updated : 2026-10-14 23:55

NVD link : CVE-2026-107676

Mitre link : CVE-2026-107676

CVE.ORG link : CVE-2026-107676

JSON object : View

Products Affected

ffmpeg

  • ffmpeg
CWE
CWE-908

Use of Uninitialized Resource