UBUNTU-CVE-2026-66039
- Source
- https://ubuntu.com/security/CVE-2026-66039
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-66039.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-66039
- Upstream
- Downstream
- Related
- Published
- 2026-07-24T20:18:00Z
- Modified
- 2026-09-10T00:56:42Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Ubuntu - medium
- Summary
- [none]
- Details
-
FFmpeg through 8.1.2, fixed in commit aafb5c6, contains a signed integer overflow vulnerability in the MACE6 audio decoder that allows attackers to corrupt heap memory by supplying a crafted CAF file with a malicious bytes_per_packet value. Attackers can craft a CAF file with oversized bytes_per_packet and frames_per_packet values in the desc chunk to trigger an integer overflow in mace_decode_frame() during output sample count computation, resulting in an undersized buffer allocation and heap out-of-bounds write that could enable code execution.
- References
-
- https://ubuntu.com/security/CVE-2026-66039
- https://www.cve.org/CVERecord?id=CVE-2026-66039
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23631
- https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/aafb5c655edc76a753275c383ebb139feb032718
- https://www.vulncheck.com/advisories/ffmpeg-mace6-audio-decoder-heap-out-of-bounds-write-via-caf-file
- https://ubuntu.com/security/notices/USN-8671-1
- https://ubuntu.com/security/notices/USN-8738-1
Affected packages
Ubuntu:Pro:14.04:LTS
libav
Package
- Name
- libav
- Purl
- pkg:deb/ubuntu/libav?arch=source&distro=esm-infra-legacy%2Ftrusty
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
6:0.*
6:0.8.7-1ubuntu2
6:9.*
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
Ecosystem specific
{
"binaries": [
{
"binary_name": "libav-tools",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libavcodec-extra",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libavcodec-extra-54",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libavcodec54",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libavdevice-extra-53",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libavdevice53",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libavfilter-extra-3",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libavfilter3",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libavformat-extra-54",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libavformat54",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libavresample1",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libavutil-extra-52",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libavutil52",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libswscale-extra-2",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
},
{
"binary_name": "libswscale2",
"binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
}
]
}Ubuntu:Pro:16.04:LTS
ffmpeg
Package
- Name
- ffmpeg
- Purl
- pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps-legacy%2Fxenial
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed7:2.8.17-0ubuntu0.1+esm15
Affected versions
7:2.*
7:2.7.2-1build1
7:2.8.1-1ubuntu1
7:2.8.2-1ubuntu1
7:2.8.3-1
7:2.8.4-1
7:2.8.4-1ubuntu1
7:2.8.4-1ubuntu2
7:2.8.4-1ubuntu3
7:2.8.4-1ubuntu4
7:2.8.6-1ubuntu1
7:2.8.6-1ubuntu2
7:2.8.8-0ubuntu0.16.04.1
7:2.8.10-0ubuntu0.16.04.1
7:2.8.11-0ubuntu0.16.04.1
7:2.8.14-0ubuntu0.16.04.1
7:2.8.15-0ubuntu0.16.04.1
7:2.8.15-0ubuntu0.16.04.1+esm1
7:2.8.17-0ubuntu0.1
7:2.8.17-0ubuntu0.1+esm1
7:2.8.17-0ubuntu0.1+esm2
7:2.8.17-0ubuntu0.1+esm3
7:2.8.17-0ubuntu0.1+esm4
7:2.8.17-0ubuntu0.1+esm5
7:2.8.17-0ubuntu0.1+esm6
7:2.8.17-0ubuntu0.1+esm7
7:2.8.17-0ubuntu0.1+esm8
7:2.8.17-0ubuntu0.1+esm9
7:2.8.17-0ubuntu0.1+esm10
7:2.8.17-0ubuntu0.1+esm11
7:2.8.17-0ubuntu0.1+esm12
7:2.8.17-0ubuntu0.1+esm13
7:2.8.17-0ubuntu0.1+esm14
Ecosystem specific
{
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ffmpeg",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
},
{
"binary_name": "libav-tools",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
},
{
"binary_name": "libavcodec-extra",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
},
{
"binary_name": "libavcodec-ffmpeg-extra56",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
},
{
"binary_name": "libavcodec-ffmpeg56",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
},
{
"binary_name": "libavdevice-ffmpeg56",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
},
{
"binary_name": "libavfilter-ffmpeg5",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
},
{
"binary_name": "libavformat-ffmpeg56",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
},
{
"binary_name": "libavresample-ffmpeg2",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
},
{
"binary_name": "libavutil-ffmpeg54",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
},
{
"binary_name": "libpostproc-ffmpeg53",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
},
{
"binary_name": "libswresample-ffmpeg1",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
},
{
"binary_name": "libswscale-ffmpeg3",
"binary_version": "7:2.8.17-0ubuntu0.1+esm15"
}
]
}Ubuntu:Pro:18.04:LTS
ffmpeg
Package
- Name
- ffmpeg
- Purl
- pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fbionic
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed7:3.4.11-0ubuntu0.1+esm13
Affected versions
7:3.*
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
7:3.4.2-1
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
7:3.4.11-0ubuntu0.1
7:3.4.11-0ubuntu0.1+esm1
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
7:3.4.11-0ubuntu0.1+esm10
7:3.4.11-0ubuntu0.1+esm11
7:3.4.11-0ubuntu0.1+esm12
Ecosystem specific
{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ffmpeg",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libavcodec-extra",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libavcodec-extra57",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libavcodec57",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libavdevice57",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libavfilter-extra",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libavfilter-extra6",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libavfilter6",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libavformat57",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libavresample3",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libavutil55",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libpostproc54",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libswresample2",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
},
{
"binary_name": "libswscale4",
"binary_version": "7:3.4.11-0ubuntu0.1+esm13"
}
]
}Ubuntu:Pro:20.04:LTS
ffmpeg
Package
- Name
- ffmpeg
- Purl
- pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Ffocal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed7:4.2.7-0ubuntu0.1+esm14
Affected versions
7:4.*
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+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
7:4.2.7-0ubuntu0.1+esm10
7:4.2.7-0ubuntu0.1+esm11
7:4.2.7-0ubuntu0.1+esm12
7:4.2.7-0ubuntu0.1+esm13
Ecosystem specific
{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ffmpeg",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libavcodec-extra",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libavcodec-extra58",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libavcodec58",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libavdevice58",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libavfilter-extra",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libavfilter-extra7",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libavfilter7",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libavformat58",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libavresample4",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libavutil56",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libpostproc55",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libswresample3",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
},
{
"binary_name": "libswscale5",
"binary_version": "7:4.2.7-0ubuntu0.1+esm14"
}
]
}Ubuntu:Pro:22.04:LTS
ffmpeg
Package
- Name
- ffmpeg
- Purl
- pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fjammy
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed7:4.4.2-0ubuntu0.22.04.1+esm13
Affected versions
7:4.*
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+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
7:4.4.2-0ubuntu0.22.04.1+esm10
7:4.4.2-0ubuntu0.22.04.1+esm11
7:4.4.2-0ubuntu0.22.04.1+esm12
Ecosystem specific
{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ffmpeg",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libavcodec-extra",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libavcodec-extra58",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libavcodec58",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libavdevice58",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libavfilter-extra",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libavfilter-extra7",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libavfilter7",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libavformat-extra",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libavformat-extra58",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libavformat58",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libavutil56",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libpostproc55",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libswresample3",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
},
{
"binary_name": "libswscale5",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm13"
}
]
}Ubuntu:Pro:24.04:LTS
ffmpeg
Package
- Name
- ffmpeg
- Purl
- pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fnoble
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed7:6.1.1-3ubuntu5+esm11
Affected versions
7:6.*
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+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
7:6.1.1-3ubuntu5+esm10
Ecosystem specific
{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ffmpeg",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavcodec-extra",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavcodec-extra60",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavcodec60",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavdevice60",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavfilter-extra",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavfilter-extra9",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavfilter9",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavformat-extra",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavformat-extra60",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavformat60",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libavutil58",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libpostproc57",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libswresample4",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
},
{
"binary_name": "libswscale7",
"binary_version": "7:6.1.1-3ubuntu5+esm11"
}
]
}Ubuntu:Pro:26.04:LTS
ffmpeg
Package
- Name
- ffmpeg
- Purl
- pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fresolute
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed7:8.0.1-3ubuntu2+esm3
Affected versions
7:7.*
7:7.1.1-1ubuntu4
7:7.1.2-1ubuntu3
7:7.1.2-1ubuntu4
7:7.1.3-1ubuntu1
7:8.*
7:8.0.1-2ubuntu1
7:8.0.1-3ubuntu1
7:8.0.1-3ubuntu2
7:8.0.1-3ubuntu2+esm1
Ecosystem specific
{
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ffmpeg",
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