CVE-2026-107676: FFmpeg FFmpeg

FFmpeg through 9.0.2 Uninitialized Memory Disclosure via HDR10+ Metadata Serializer

CVSS 4.8 MediumEPSS 0.0014 · 3rd percentile

Published by the CVE Program (CNA: VulnCheck) at 8 Oct 2026, 15:28 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
FFmpeg	FFmpeg pkg:github/ffmpeg/ffmpeg	affected 9.0.2 and earlier semver Other versions: unaffected

Identifiers

CVE-2026-107676

CNA

VulnCheck

Weakness (CWE)

CWE-908

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
4.8	Medium	4.0	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	CNA (VulnCheck)Used for this record
3.3	Low	3.1	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0014, the 3rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 8 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24590 patch
code.ffmpeg.org/FFmpeg/FFmpeg/commit/2c2f6e96e31795ae95a8f8323a493ffbc493111f patch
github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavutil/hdr_dynamic_metadata.c#L374-L385 technical-description
ffmpeg.org/ product
www.vulncheck.com/advisories/ffmpeg-through-9.0.2-uninitialized-memory-disclosure-via-hdr10-metadata-serializer third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.