CVE-2017-7859

FFmpeg before 2017-03-05 has an out-of-bounds write caused by a heap-based buffer overflow...

9.8 CriticalFix available

FFmpeg before 2017-03-05 has an out-of-bounds write caused by a heap-based buffer overflow related to the ff_h264_slice_context_init function in libavcodec/h264dec.c.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.93%Up 1.3 points since Apr 14, 2021

What each source reports

NVD Score used 9.8

FFmpeg before 2017-03-05 has an out-of-bounds write caused by a heap-based buffer overflow related to the ff_h264_slice_context_init function in libavcodec/h264dec.c.

Record: CVE-2017-7859
CVSS 3.0: 9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-787
Updated: 2026-11-02

CVE List No score

FFmpeg before 2017-03-05 has an out-of-bounds write caused by a heap-based buffer overflow related to the ff_h264_slice_context_init function in libavcodec/h264dec.c.

Record: CVE-2017-7859
Updated: 2026-11-02

EUVDEUVD-2017-16834 No score

FFmpeg before 2017-03-05 has an out-of-bounds write caused by a heap-based buffer overflow related to the ff_h264_slice_context_init function in libavcodec/h264dec.c.

Record: EUVD-2017-16834
Updated: 2026-11-03

GitHub AdvisoriesGHSA-jj73-fmvh-f947 9.8

FFmpeg before 2017-03-05 has an out-of-bounds write caused by a heap-based buffer overflow...

FFmpeg before 2017-03-05 has an out-of-bounds write caused by a heap-based buffer overflow related to the ff_h264_slice_context_init function in libavcodec/h264dec.c.

Record: GHSA-jj73-fmvh-f947
CVSS 3.0: 9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

OSV 9.8

FFmpeg before 2017-03-05 has an out-of-bounds write caused by a heap-based buffer overflow related to the ff_h264_slice_context_init function in libavcodec/h264dec.c.

Record: CVE-2017-7859
CVSS 3.0: 9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10754-1 No score

ffmpeg-4-4.4-5.2 on GA media

These are all security issues fixed in the ffmpeg-4-4.4-5.2 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10754-1
Updated: 2026-11-02

Affected products

ffmpeg

Affected packages

Affected packages
Package	Affected	Fixed
`ffmpeg-4` openSUSE:Tumbleweed	before 4.4-5.2	4.4-5.2

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-7859 is a critical vulnerability (CVSS 9.8) in Ffmpeg, published April 14, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.93%, the 80th percentile. Fixed in ffmpeg-4 4.4-5.2.

References

Show 44 moreShow less