CVE-2011-3946
The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote...
CVE-2011-3946 is a medium vulnerability (CVSS 6.8) in Ffmpeg, published December 9, 2013. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.71%, the 93rd percentile. Fixed in ffmpeg 7:2.4.1-1.
- Severity
- 6.8 MediumCVSS 2.0, NVD
- Exploit chance
- 5.71%EPSS, 93rd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
7:2.4.1-1ffmpeg +4 more
Description
The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Supplemental enhancement information (SEI) data, which triggers an infinite loop.
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ffmpegDebian:12 | before 7:2.4.1-1 | 7:2.4.1-1 |
ffmpegDebian:13 | before 7:2.4.1-1 | 7:2.4.1-1 |
ffmpegDebian:14 | before 7:2.4.1-1 | 7:2.4.1-1 |
libavDebian:7 From an advisory covering 11 CVEs | before 6:0.8.15-1, plus listed versions 6:0.8.10-16:0.8.12-16:0.8.13-16:0.8.6-16:0.8.7-16:0.8.8-16:0.8.9-1 | 6:0.8.15-1 |
libav-toolsopenSUSE:Tumbleweed From an advisory covering 12 CVEs | before 12.3-1.17 | 12.3-1.17 |
What each source reports
NVD Score used
The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Supplemental enhancement information (SEI) data, which triggers an infinite loop.
- Record
CVE-2011-3946- CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE ListNo score
The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Supplemental enhancement information (SEI) data, which triggers an infinite loop.
- Record
CVE-2011-3946- Updated
- 2026-11-02
EUVDEUVD-2011-3899No score
The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Supplemental enhancement information (SEI) data, which triggers an infinite loop.
- Record
EUVD-2011-3899- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wwfj-h5pc-cmm2No score
The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote...
The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Supplemental enhancement information (SEI) data, which triggers an infinite loop.
- Record
GHSA-wwfj-h5pc-cmm2- Updated
- 2026-11-02
OSVNo score
The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Supplemental enhancement information (SEI) data, which triggers an infinite loop.
- Record
CVE-2011-3946- Updated
- 2026-11-02
OSVDEBIAN-CVE-2011-3946No score
The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Supplemental enhancement information (SEI) data, which triggers an infinite loop.
- Record
DEBIAN-CVE-2011-3946- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10926-1No score
libav-tools-12.3-1.17 on GA media
These are all security issues fixed in the libav-tools-12.3-1.17 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10926-1- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
ffmpeg.org/security.html
git.videolan.org?p=ffmpeg.git%3Ba=commitdiff%3Bh=9decfc17bb76da34734296048d390b176abf404c
nvd.nist.gov/vuln/detail/CVE-2011-3946
github.com/advisories/GHSA-wwfj-h5pc-cmm2
security-tracker.debian.org/tracker/CVE-2011-3946
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suse.com/security/cve/CVE-2011-3946