CVE catalog
CVE-2026-75145
FFmpeg before commit b4c199c contains an incorrect integer narrowing conversion in the AV1 RTP packetizer (libavformat/rtpenc_av1.c). The OBU size is cast to long before comparison against the remaini
- Severity
- High · CVSS 8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.16% · Oct 25, 2026
FFmpeg before commit b4c199c contains an incorrect integer narrowing conversion in the AV1 RTP packetizer (libavformat/rtpenc_av1.c). The OBU size is cast to long before comparison against the remaining frame size. On targets where long is 32 bits, including 64-bit Windows, sufficiently large OBU size values are sign-flipped by the narrowing cast, producing a negative value that passes the payload size check. This allows an oversized OBU to bypass the safety bound on affected platforms, leading to out-of-bounds memory access when the oversized value is subsequently used as a copy length.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | ffmpeg | sid | 7:9.0.2-4 | fixed |
| Debian | ffmpeg | forky | 7:9.0.2-4 | fixed |
| Debian | ffmpeg | trixie | 7:7.1.5-0+deb13u1 | not affected |
| Debian | ffmpeg | trixie-security | 7:7.1.5-0+deb13u1 | not affected |
| Debian | ffmpeg | bookworm | 7:5.1.9-0+deb12u1 | not affected |
| Debian | ffmpeg | bookworm-security | 7:5.1.9-0+deb12u1 | not affected |
| Fedora | ffmpeg | 44 | 0:8.1.3-1.fc44 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ffmpeg | source | sid | 7:9.0.2-1 | not yet assigned | Not reported | Not reported |
| Debian | ffmpeg | source | forky | 7:9.0.2-1 | not yet assigned | Not reported | Not reported |
| Debian | ffmpeg | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | ffmpeg | source | bookworm | Not affected | unimportant | Not reported | Not reported |
| Fedora | ffmpeg | rpm | 44 | 0:8.1.3-1.fc44 | Not reported | FEDORA-2026-3E109A0C85#CVE-2026-75145 | Not reported |
OpenFactory catalog packages
[Fedora 44]
- [ffmpeg-free]Unknown
Source package: [ffmpeg]
Details (4)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [ffmpeg-free-devel]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libavcodec-free]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libavcodec-free-devel]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libavdevice-free]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libavdevice-free-devel]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libavfilter-free]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libavfilter-free-devel]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libavformat-free]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libavformat-free-devel]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libavutil-free]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libavutil-free-devel]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libswresample-free]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libswresample-free-devel]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libswscale-free]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
- [libswscale-free-devel]Unknown
Source package: [ffmpeg]
Details (6)
8.0.1-6.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.0.1-6.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· aarch64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· i686 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
8.1.2-4.fc44· x86_64 · 44Unknown
Version impact unknown
nvd · ffmpeg · fedora · 44
[Debian 12 (Bookworm)]
- [ffmpeg]Not affected
Details (4)
7:5.1.9-0+deb12u1· amd64 · bookwormNot affected
nvd · ffmpeg · debian · bookworm
7:5.1.9-0+deb12u1· arm64 · bookwormNot affected
nvd · ffmpeg · debian · bookworm
7:5.1.9-0+deb12u1· amd64 · bookworm-securityNot affected
nvd · ffmpeg · debian · bookworm
7:5.1.9-0+deb12u1· arm64 · bookworm-securityNot affected
nvd · ffmpeg · debian · bookworm
- [ffmpeg-doc]Not affected
Source package: [ffmpeg]
Details (4)
7:5.1.9-0+deb12u1· all · bookwormNot affected
nvd · ffmpeg · debian · bookworm
7:5.1.9-0+deb12u1· all · bookwormNot affected
nvd · ffmpeg · debian · bookworm
7:5.1.9-0+deb12u1· all · bookworm-securityNot affected
nvd · ffmpeg · debian · bookworm
7:5.1.9-0+deb12u1· all · bookworm-securityNot affected
nvd · ffmpeg · debian · bookworm
- [libavcodec59]Not affected
Source package: [ffmpeg]
Details (4)
7:5.1.9-0+deb12u1· amd64 · bookwormNot affected
nvd · ffmpeg · debian · bookworm
7:5.1.9-0+deb12u1· arm64 · bookwormNot affected
nvd · ffmpeg · debian · bookworm
7:5.1.9-0+deb12u1· amd64 · bookworm-securityNot affected
nvd · ffmpeg · debian · bookworm
7:5.1.9-0+deb12u1· arm64 · bookworm-securityNot affected
nvd · ffmpeg · debian · bookworm
- [libavcodec-dev]Not affected
Source package: [ffmpeg]
Details (4)
7:5.1.9-0+deb12u1· amd64 · bookwormNot affected
nvd · ffmpeg · debian · bookworm
7:5.1.9-0+deb12u1· arm64 · bookwormNot affected
nvd · ffmpeg · debian · bookworm
7:5.1.9-0+deb12u1· amd64 · bookworm-securityNot affected
nvd · ffmpeg · debian · bookworm
7:5.1.9-0+deb12u1· arm64 · bookworm-securityNot affected
nvd · ffmpeg · debian · bookworm
Observed:
References
- [https://bodhi.fedoraproject.org/updates/FEDORA-2026-3e109a0c85]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2494554]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2507020]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2508218]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2508449]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2510587]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2510588]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2510589]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2510601]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2511358]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2516040]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2516073]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2516126]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2519501]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2519576]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2519643]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2519667]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2525514]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2525517]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2525518]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2525521]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2525523]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2526159]
- [https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/b4c199c5906ff53368926c2a5839881f41957e7f]
- [https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24090]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11659-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-75145]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-75145]
- [https://security-tracker.debian.org/tracker/CVE-2026-75145]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-75145.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2939.json]
- [https://www.vulncheck.com/advisories/ffmpeg-integer-narrowing-conversion-oob-memory-access-in-av1-rtp-packetizer]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [Fedora security updates (Bodhi)] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]