CVE-2016-6881
The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers...
The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers to cause an infinite loop denial of service via a crafted SWF file.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers to cause an infinite loop denial of service via a crafted SWF file.
- Record
CVE-2016-6881- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE List No score
The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers to cause an infinite loop denial of service via a crafted SWF file.
- Record
CVE-2016-6881- Updated
- 2026-11-02
EUVDEUVD-2016-7766 No score
The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers to cause an infinite loop denial of service via a crafted SWF file.
- Record
EUVD-2016-7766- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fpqv-m26w-pgqx
The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers...
The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers to cause an infinite loop denial of service via a crafted SWF file.
- Record
GHSA-fpqv-m26w-pgqx- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVALPINE-CVE-2016-6881
The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers to cause an infinite loop denial of service via a crafted SWF file.
- Record
ALPINE-CVE-2016-6881- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV
The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers to cause an infinite loop denial of service via a crafted SWF file.
- Record
CVE-2016-6881- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-07
OSVDEBIAN-CVE-2016-6881
The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers to cause an infinite loop denial of service via a crafted SWF file.
- Record
DEBIAN-CVE-2016-6881- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2016-6881
The zlib_refill function in libavformat/swfdec.c in FFmpeg before 3.1.3 allows remote attackers to cause an infinite loop denial of service via a crafted SWF file.
- Record
UBUNTU-CVE-2016-6881- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVMGASA-2018-0008 No score
Updated ffmpeg packages fix security vulnerability
This update provides ffmpeg version 2.4.14, which fixes several security vulnerabilities and other bugs which were corrected upstream.
- Record
MGASA-2018-0008- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ffmpegAlpine:v3.3 |
before 2.8.11-r0 | 2.8.11-r0 |
ffmpegAlpine:v3.4 |
before 3.0.7-r0 | 3.0.7-r0 |
ffmpegDebian:12 |
before 7:3.1.3-1 | 7:3.1.3-1 |
ffmpegDebian:13 |
before 7:3.1.3-1 | 7:3.1.3-1 |
ffmpegDebian:14 |
before 7:3.1.3-1 | 7:3.1.3-1 |
ffmpegMageia:5 From an advisory covering 31 CVEs |
before 2.4.14-1.mga5 | 2.4.14-1.mga5 |
ffmpegMageia:5 From an advisory covering 31 CVEs |
before 2.4.14-1.mga5.tainted | 2.4.14-1.mga5.tainted |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-6881 is a medium vulnerability (CVSS 5.5) in Ffmpeg, published December 23, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.90%, the 59th percentile. Fixed in ffmpeg 2.8.11-r0.