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CVE-2026-107676

FFmpeg through 9.0.2 Uninitialized Memory Disclosure via HDR10+ Metadata Serializer PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
FFmpeg / FFmpegaffected 0 through 9.0.2

CWE

CWE-908

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.