CVE-2026-6385

NameCVE-2026-6385
DescriptionA flaw was found in FFmpeg. A remote attacker could exploit this vulnerability by providing a specially crafted MPEG-PS/VOB media file containing a malicious DVD subtitle stream. This vulnerability is caused by a signed integer overflow in the DVD subtitle parser's fragment reassembly bounds checks, leading to a heap out-of-bounds write. Successful exploitation can result in a denial of service (DoS) due to an application crash, and potentially lead to arbitrary code execution.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-6268-1, DSA-6276-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ffmpeg (PTS)bookworm, bookworm (security)7:5.1.9-0+deb12u1fixed
trixie (security), trixie7:7.1.5-0+deb13u1fixed
forky, sid7:9.0.2-4fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ffmpegsourcebookworm7:5.1.9-0+deb12u1DSA-6276-1
ffmpegsourcetrixie7:7.1.4-0+deb13u1DSA-6268-1
ffmpegsource(unstable)7:8.1.1-1

Notes

[bullseye] - ffmpeg <postponed> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=2458764
https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/1bde76da890127608744c3b17669a99d2adce54a (n9.0)
https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/059489977b7ec46d407fd95b6879b36fc2bb39e7 (n8.1.1)
https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/539cae16963a509de3484263ebf9282d5127b3f2 (n7.1.4)
https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/263d168d9600e89dc5420e9186823a37e48487ab (n5.1.9)

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