CVE-2017-16840 json
The VC-2 Video Compression encoder in FFmpeg 3.0 and 3.4 allows remote attackers to cause a denial of service (out-of-bounds read) because…
published 2017-11-21 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-8014
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.3%
- EPSS 3.3% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
The VC-2 Video Compression encoder in FFmpeg 3.0 and 3.4 allows remote attackers to cause a denial of service (out-of-bounds read) because of incorrect buffer padding for non-Haar wavelets, related to libavcodec/vc2enc.c and libavcodec/vc2enc_dwt.c.
Patch / fix
- ffmpeg Debian 14, Debian 13, Debian 12 7:3.4.1-1
debian advisories DEBIAN-CVE-2017-16840
- ffmpeg-4 openSUSE Tumbleweed 4.4-5.2
- ffmpeg Package Hub 12 SP2 3.4.2-14.1
opensuse advisories openSUSE-SU-2024:10754-1openSUSE-SU-2018:0470-1openSUSE-SU-2018:0476-1
- ffmpeg Arch Linux 1:3.4.1-1
arch linux advisories AVG-516
Exploit prediction
3.33% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
github.com
/FFmpeg/FFmpeg/commit/94e538aebbc9f9c529e8b1f2eda860cfb8c473b1
patch, third-party-advisory
-
debian.org
/security/2017/dsa-4049
vendor-advisory
- git.videolan.org /?p=ffmpeg.git%3Ba=commit%3Bh=a94cb36ab2ad99d3a1331c9f91831ef593d94f74
-
securityfocus.com
/bid/101924
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2017-16840
- NVD CVE-2017-16840
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.