CVE-2017-7866: ffmpeg Out-of-bounds Write
CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2017-7866DEBIAN-CVE-2017-7866CGA-2v4v-vqx7-jjg5CGA-7mph-c6jr-x2h6CGA-98j3-rq32-cmmcCGA-h6wh-62v8-c2h4CGA-mq22-q8j9-vj79CGA-qxqg-rvvf-426cCGA-wcfq-2g6q-m2g3CGA-wh5h-mmj3-jwxf
Published 14-04-2017Last modified 05-08-2024
Vulnerability summary
CVE-2017-7866 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in ffmpeg. EPSS estimates a 2.51% chance of exploitation in the next 30 days, higher than 84.4% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.0 (NVD)EPSS score
2.51%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 3 · Related 2Timeline
- 14-04-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
FFmpeg before 2017-01-23 has an out-of-bounds write caused by a stack-based buffer overflow related to the decode_zbuf function in libavcodec/pngdec.c.
CVSS metrics
5 scores · 4 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.51%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
0.00 pp
From 2.51% on 18-09-2026
18-09-202618-10-2026
EPSS score2.51%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard4 products
- torchaudio-ffmpeg-tarballsAll versions (No fix recorded)
- torchaudio-ffmpeg-tarballs-4.4.4All versions (No fix recorded)
- torchaudio-ffmpeg-tarballs-5.0.3All versions (No fix recorded)
- torchaudio-ffmpeg-tarballs-6.0All versions (No fix recorded)
Debian1 product
- ffmpeg< 7:3.2.4-1
Ffmpeg1 product
- ffmpeg≤ 2.8.9
Ubuntu1 product
- ffmpeg< 7:2.8.11-0ubuntu0.16.04.1
4 vendors · 7 products
References
6 links- bugs.chromium.org/p/oss-fuzz/issues/detail?id=444X Refsource MISCThird Party AdvisoryVDB EntryREPORTAdvisory
- github.com/FFmpeg/FFmpeg/commit/e371f031b942d73e02c090170975561fabd5c264X Refsource MISCPatchThird Party AdvisoryREPORTFIX
