CVE-2021-30123

Public Exploit

Description

FFmpeg <=4.3 contains a buffer overflow vulnerability in libavcodec through a crafted file that may lead to remote code execution.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 3.61% Top 15%
Vendor Advisory gentoo.org Vendor Advisory ffmpeg.org Vendor Advisory ffmpeg.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://trac.ffmpeg.org/ticket/8845 vendor advisory exploit
http://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=d6f293353c94c7ce200f6e0975ae3de49787f91f
https://trac.ffmpeg.org/ticket/8863 vendor advisory exploit
https://security.gentoo.org/glsa/202105-24 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-30123?
CVE-2021-30123 has been scored as a high severity vulnerability.
How to fix CVE-2021-30123?
To fix CVE-2021-30123, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-30123 being actively exploited in the wild?
It is possible that CVE-2021-30123 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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