CVE-2026-107676 (GCVE-0-2026-107676)

Vulnerability from cvelistv5 – Published: 2026-10-08 15:28 – Updated: 2026-10-14 00:59
VLAI
Title
FFmpeg through 9.0.2 Uninitialized Memory Disclosure via HDR10+ Metadata Serializer
Summary
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.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 00:59 UTC
CWE
  • CWE-908 - Use of Uninitialized Resource
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6102 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
FFmpeg FFmpeg Affected: 0 , ≤ 9.0.2 (semver)
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-20 22:51
Credits
Joshua Rogers (AISLE Research)
Show details on NVD website
To clipboard 

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