FFmpeg before commit 2b46ebdbff1d8dec7a3d8ea280a612b91a582869 contains a Buffer Overflow vulnerability in asf_o format demuxer that can res…

published 2018-07-23 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10706

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 4.2%; EPSS 4.2% chance of exploitation in 30 days, percentile 91%
public exploits: 0; none known

FFmpeg before commit 2b46ebdbff1d8dec7a3d8ea280a612b91a582869 contains a Buffer Overflow vulnerability in asf_o format demuxer that can result in heap-buffer-overflow that may result in remote code execution. This attack appears to be exploitable via specially crafted ASF file that has to be provided as input to FFmpeg. This vulnerability appears to have been fixed in 2b46ebdbff1d8dec7a3d8ea280a612b91a582869 and later.

Patch / fix

distros 3 links 1

debian suse alpine

ffmpeg Debian 14, Debian 13, Debian 12 7:4.0.2-1

debian advisories DEBIAN-CVE-2018-1999011

ffmpeg SLE Workstation Extension 15, SLE Module for Desktop Applications 15 3.4.2-4.5.1

suse advisories SUSE-SU-2018:2305-1

ffmpeg Alpine 3.24, Alpine 3.23, Alpine 3.22 +12 more 4.0.2-r0
ffmpeg4 Alpine 3.22, Alpine 3.21, Alpine 3.20 +4 more 4.0.2-r0

alpine advisories ALPINE-CVE-2018-1999011

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

github.com/FFmpeg/FFmpeg@2b46ebd commit

Exploit prediction

4.19% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

github.com /FFmpeg/FFmpeg/commit/2b46ebdbff1d8dec7a3d8ea280a612b91a582869
issue-tracking, patch, third-party-advisory
debian.org /security/2019/dsa-4449
vendor-advisory
securityfocus.com /bid/104896
vdb-entry, third-party-advisory
seclists.org /bugtraq/2019/May/60
mailing-list

Sources

CVE List CVE-2018-1999011
NVD CVE-2018-1999011

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.

Summary