HighFix available
ffmpeg, libav — security advisory
FFmpeg before commit 1cdeb3c contains a heap buffer overflow vulnerability in the VC-2/Dirac RTP packetizer (libavformat/rtpenc_vc2hq.c) that allows attackers to trigger memory corruption by supplying a crafted Dirac data unit. The packetizer copies an input-derived data unit or fragment size into a fixed-size buffer without an upper bound check, causing a heap buffer overflow when the crafted input is packetized for RTP output.
- Products
- ffmpeg, libav
- Affected versions
- 6:0.8.7-1ubuntu2, 6:9.10-1ubuntu1, 6:9.10-1ubuntu2, 6:9.10-1ubuntu5, 6:9.10-1ubuntu6, 6:9.10-1ubuntu7, 6:9.11-2ubuntu1, 6:9.11-2ubuntu2, 6:9.13-0ubuntu0.14.04.1, 6:9.14-0ubuntu0.14.04.1, 6:9.16-0ubuntu0.14.04.1, 6:9.18-0ubuntu0.14.04.1, 6:9.20-0ubuntu0.14.04.1, 6:9.20-0ubuntu0.14.04.1+esm1, 7:3.3.4-2, 7:3.3.4-2build3, 7:3.4-2ubuntu2, 7:3.4-4, 7:3.4-4build1, 7:3.4.1-1, 7:3.4.1-1build1, 7:3.4.11-0ubuntu0.1, 7:3.4.11-0ubuntu0.1+esm1, 7:3.4.11-0ubuntu0.1+esm10, 7:3.4.11-0ubuntu0.1+esm11, 7:3.4.11-0ubuntu0.1+esm12, 7:3.4.11-0ubuntu0.1+esm13, 7:3.4.11-0ubuntu0.1+esm14, 7:3.4.11-0ubuntu0.1+esm2, 7:3.4.11-0ubuntu0.1+esm3, 7:3.4.11-0ubuntu0.1+esm4, 7:3.4.11-0ubuntu0.1+esm5, 7:3.4.11-0ubuntu0.1+esm6, 7:3.4.11-0ubuntu0.1+esm7, 7:3.4.11-0ubuntu0.1+esm8, 7:3.4.11-0ubuntu0.1+esm9, 7:3.4.2-1, 7:3.4.2-1build1, 7:3.4.2-2, 7:3.4.4-0ubuntu0.18.04.1, 7:3.4.6-0ubuntu0.18.04.1, 7:3.4.8-0ubuntu0.2, 7:4.1.4-1build2, 7:4.2.1-2, 7:4.2.1-2ubuntu1, 7:4.2.2-1build1, 7:4.2.2-1ubuntu1, 7:4.2.4-1ubuntu0.1, 7:4.2.4-1ubuntu0.1+esm1, 7:4.2.7-0ubuntu0.1, 7:4.2.7-0ubuntu0.1+esm1, 7:4.2.7-0ubuntu0.1+esm10, 7:4.2.7-0ubuntu0.1+esm11, 7:4.2.7-0ubuntu0.1+esm12, 7:4.2.7-0ubuntu0.1+esm13, 7:4.2.7-0ubuntu0.1+esm14, 7:4.2.7-0ubuntu0.1+esm15, 7:4.2.7-0ubuntu0.1+esm2, 7:4.2.7-0ubuntu0.1+esm3, 7:4.2.7-0ubuntu0.1+esm4, 7:4.2.7-0ubuntu0.1+esm5, 7:4.2.7-0ubuntu0.1+esm6, 7:4.2.7-0ubuntu0.1+esm7, 7:4.2.7-0ubuntu0.1+esm8, 7:4.2.7-0ubuntu0.1+esm9, 7:4.4-6ubuntu5, 7:4.4.1-2ubuntu1, 7:4.4.1-3ubuntu1, 7:4.4.1-3ubuntu2, 7:4.4.1-3ubuntu3, 7:4.4.1-3ubuntu5, 7:4.4.2-0ubuntu0.22.04.1, 7:4.4.2-0ubuntu0.22.04.1+esm1, 7:4.4.2-0ubuntu0.22.04.1+esm10, 7:4.4.2-0ubuntu0.22.04.1+esm11, 7:4.4.2-0ubuntu0.22.04.1+esm12, 7:4.4.2-0ubuntu0.22.04.1+esm13, 7:4.4.2-0ubuntu0.22.04.1+esm14, 7:4.4.2-0ubuntu0.22.04.1+esm2, 7:4.4.2-0ubuntu0.22.04.1+esm3, 7:4.4.2-0ubuntu0.22.04.1+esm4, 7:4.4.2-0ubuntu0.22.04.1+esm5, 7:4.4.2-0ubuntu0.22.04.1+esm6, 7:4.4.2-0ubuntu0.22.04.1+esm7, 7:4.4.2-0ubuntu0.22.04.1+esm8, 7:4.4.2-0ubuntu0.22.04.1+esm9, 7:6.0-6ubuntu1, 7:6.0-9ubuntu1, 7:6.1-2ubuntu1, 7:6.1-3ubuntu1, 7:6.1-4ubuntu1, 7:6.1-5ubuntu1, 7:6.1.1-1ubuntu1, 7:6.1.1-3ubuntu1, 7:6.1.1-3ubuntu5, 7:6.1.1-3ubuntu5+esm1, 7:6.1.1-3ubuntu5+esm10, 7:6.1.1-3ubuntu5+esm11, 7:6.1.1-3ubuntu5+esm12, 7:6.1.1-3ubuntu5+esm2, 7:6.1.1-3ubuntu5+esm3, 7:6.1.1-3ubuntu5+esm4, 7:6.1.1-3ubuntu5+esm5, 7:6.1.1-3ubuntu5+esm6, 7:6.1.1-3ubuntu5+esm7, 7:6.1.1-3ubuntu5+esm8, 7:7.1.1-1ubuntu4, 7:7.1.2-1ubuntu3, 7:7.1.2-1ubuntu4, 7:7.1.3-1ubuntu1, 7:8.0.1-2ubuntu1, 7:8.0.1-3ubuntu1, 7:8.0.1-3ubuntu2, 7:8.0.1-3ubuntu2+esm1, 7:8.0.1-3ubuntu2+esm3, 7:8.1-3ubuntu3, 7:8.1.2-2ubuntu2
- Fixed versions
- 7:3.4.11-0ubuntu0.1+esm15, 7:4.2.7-0ubuntu0.1+esm16, 7:4.4.2-0ubuntu0.22.04.1+esm15, 7:6.1.1-3ubuntu5+esm13, 7:8.0.1-3ubuntu2+esm4
- CVEs
- CVE-2026-75144
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:17 UTC · Revision 1
Source evidence
FFmpeg before commit 1cdeb3c contains a heap buffer overflow vulnerability in the VC-2/Dirac RTP packetizer (libavformat/rtpenc_vc2hq.c) that allows attackers to trigger memory corruption by supplying a crafted Dirac data unit. The packetizer copies an input-derived data unit or fragment size into a fixed-size buffer without an upper bound check, causing a heap buffer overflow when the crafted input is packetized for RTP output.
osv:UBUNTU-CVE-2026-75144
libav
Fixed versions: Not specified
ffmpeg
Fixed versions: 7:3.4.11-0ubuntu0.1+esm15
ffmpeg
Fixed versions: 7:4.2.7-0ubuntu0.1+esm16
ffmpeg
Fixed versions: 7:4.4.2-0ubuntu0.22.04.1+esm15
ffmpeg
Fixed versions: 7:6.1.1-3ubuntu5+esm13
ffmpeg
Fixed versions: Not specified
ffmpeg
Fixed versions: 7:8.0.1-3ubuntu2+esm4
Complete source record
{
"id": "c8c9a1f1c7b2eb5bde3d5ad7508529fec5d358839df0a489eeaa1b605df34f29",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-75144",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-75144",
"summary": "FFmpeg before commit 1cdeb3c contains a heap buffer overflow vulnerability in the VC-2/Dirac RTP packetizer (libavformat/rtpenc_vc2hq.c) that allows attackers to trigger memory corruption by supplying a crafted Dirac data unit. The packetizer copies an input-derived data unit or fragment size into a fixed-size buffer without an upper bound check, causing a heap buffer overflow when the crafted input is packetized for RTP output.",
"evidence": "osv:UBUNTU-CVE-2026-75144",
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{
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},
{
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{
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{
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]
},
{
"name": {
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"evidence": "/affected/6/package/name"
},
"prerequisites": [],
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{
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"evidence": "/affected/6/ranges"
}
],
"affected_versions": [
{
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"evidence": "/affected/6/versions"
},
{
"value": "7:7.1.2-1ubuntu3",
"evidence": "/affected/6/versions"
},
{
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"evidence": "/affected/6/versions"
},
{
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"evidence": "/affected/6/versions"
},
{
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"evidence": "/affected/6/versions"
},
{
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"evidence": "/affected/6/versions"
},
{
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"evidence": "/affected/6/versions"
},
{
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"evidence": "/affected/6/versions"
},
{
"value": "7:8.0.1-3ubuntu2+esm3",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-75144",
"aliases": [
"UBUNTU-CVE-2026-75144"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
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{
"binary_name": "libavfilter11",
"binary_version": "7:8.0.1-3ubuntu2+esm4"
},
{
"binary_name": "libavformat-extra",
"binary_version": "7:8.0.1-3ubuntu2+esm4"
},
{
"binary_name": "libavformat-extra62",
"binary_version": "7:8.0.1-3ubuntu2+esm4"
},
{
"binary_name": "libavformat62",
"binary_version": "7:8.0.1-3ubuntu2+esm4"
},
{
"binary_name": "libavutil60",
"binary_version": "7:8.0.1-3ubuntu2+esm4"
},
{
"binary_name": "libswresample6",
"binary_version": "7:8.0.1-3ubuntu2+esm4"
},
{
"binary_name": "libswscale9",
"binary_version": "7:8.0.1-3ubuntu2+esm4"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
}
],
"modified": "2026-10-17T13:01:05.386892476Z",
"provider": "osv",
"upstream": [
"CVE-2026-75144"
],
"references": [
"https://ubuntu.com/security/CVE-2026-75144",
"https://www.cve.org/CVERecord?id=CVE-2026-75144",
"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24091",
"https://ubuntu.com/security/notices/USN-8716-1",
"https://ubuntu.com/security/notices/USN-8716-2"
]
},
"related_cves": [
{
"value": "CVE-2026-75144",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 360953,
"published_at": "2026-08-19T17:21:00+00:00"
}