HighFix available
ffmpeg — security advisory
A memory corruption vulnerability exists in FFmpeg before 8.1. The RTP encoding process. In the nal_send function in libavformat/rtpenc_h264_hevc.c, a negative size parameter (size=-3) is passed to memcpy when transmitting H.264/HEVC streams via RTP using a crafted input file. This was detected using AddressSanitizer.
- Products
- ffmpeg
- Affected versions
- 7:5.1.3-1, 7:5.1.3-2, 7:5.1.4-0+deb12u1, 7:5.1.5-0+deb12u1, 7:5.1.6-0+deb12u1, 7:5.1.7-0+deb12u1, 7:7.1.1-1, 7:7.1.2-0+deb13u1, 7:7.1.2-1, 7:7.1.3-1, 7:8.0-1, 7:8.0-2, 7:8.0.1-1
- Fixed versions
- 7:5.1.8-0+deb12u1, 7:7.1.3-0+deb13u1, 7:8.0.1-2
- CVEs
- CVE-2026-30754
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 19:57 UTC · Revision 1
Source evidence
A memory corruption vulnerability exists in FFmpeg before 8.1. The RTP encoding process. In the nal_send function in libavformat/rtpenc_h264_hevc.c, a negative size parameter (size=-3) is passed to memcpy when transmitting H.264/HEVC streams via RTP using a crafted input file. This was detected using AddressSanitizer.
osv:DEBIAN-CVE-2026-30754
ffmpeg
Fixed versions: 7:5.1.8-0+deb12u1
ffmpeg
Fixed versions: 7:7.1.3-0+deb13u1
ffmpeg
Fixed versions: 7:8.0.1-2
Complete source record
{
"id": "fba64b7ab7140c283acef0aa7f971cad0d61c8b95c994581b7966f552cf3862f",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-30754",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-30754",
"summary": "A memory corruption vulnerability exists in FFmpeg before 8.1. The RTP encoding process. In the nal_send function in libavformat/rtpenc_h264_hevc.c, a negative size parameter (size=-3) is passed to memcpy when transmitting H.264/HEVC streams via RTP using a crafted input file. This was detected using AddressSanitizer.",
"evidence": "osv:DEBIAN-CVE-2026-30754",
"products": [
{
"name": {
"value": "ffmpeg",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "7:5.1.3-1",
"evidence": "/affected/0/versions"
},
{
"value": "7:5.1.3-2",
"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
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{
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"affected_versions": [
{
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"evidence": "/affected/1/versions"
},
{
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"evidence": "/affected/1/versions"
},
{
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"evidence": "/affected/1/versions"
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},
{
"name": {
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"affected_versions": [
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"evidence": "/affected/2/versions"
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{
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"evidence": "/affected/2/versions"
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{
"value": "7:7.1.3-1",
"evidence": "/affected/2/versions"
},
{
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"evidence": "/affected/2/versions"
},
{
"value": "7:8.0-2",
"evidence": "/affected/2/versions"
},
{
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"evidence": "/affected/2/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-30754",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7:5.1.8-0+deb12u1"
}
]
}
],
"package": {
"name": "ffmpeg",
"purl": "pkg:deb/debian/ffmpeg?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
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"7:5.1.3-2",
"7:5.1.4-0+deb12u1",
"7:5.1.5-0+deb12u1",
"7:5.1.6-0+deb12u1",
"7:5.1.7-0+deb12u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-30754.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
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"events": [
{
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{
"fixed": "7:7.1.3-0+deb13u1"
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]
}
],
"package": {
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"purl": "pkg:deb/debian/ffmpeg?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
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"7:7.1.2-0+deb13u1",
"7:7.1.2-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-30754.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
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],
"package": {
"name": "ffmpeg",
"purl": "pkg:deb/debian/ffmpeg?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"7:7.1.1-1",
"7:7.1.2-1",
"7:7.1.3-1",
"7:8.0-1",
"7:8.0-2",
"7:8.0.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-30754.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-16T09:47:29.015576708Z",
"provider": "osv",
"upstream": [
"CVE-2026-30754"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-30754"
]
},
"related_cves": [
{
"value": "CVE-2026-30754",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 338598,
"published_at": "2026-09-08T21:17:06.99+00:00"
}