CVE-2026-107676
LOW
CVSS 3.3
Published: 2026-10-08
Modified: 2026-10-08
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Threat Intelligence Pending
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Description
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.
Quick Facts
| CVE ID | CVE-2026-107676 |
| CVSS Score | 3.3 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
| Published | 2026-10-08 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |