High severity · published Apr 7, 2021
CVE-2021-30123
FFmpeg <=4.3 contains a buffer overflow vulnerability in libavcodec through a crafted file that may lead to remote code execution
8.8
CVSS
3.4%
EPSS
No
On KEV
Description
FFmpeg <=4.3 contains a buffer overflow vulnerability in libavcodec through a crafted file that may lead to remote code execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.4% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FF
Ffmpeg · Ffmpeg
4.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-30123
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-30123
git.videolan.org
http://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=d6f293353c94c7ce200f6e0975ae3de49787f91f
Third Party Advisory
https://security.gentoo.org/glsa/202105-24
Exploit
https://trac.ffmpeg.org/ticket/8845
Exploit
https://trac.ffmpeg.org/ticket/8863
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