CVE-2022-48434

Name: CVE-2022-48434
Creator: NVD / NIST
Published: 2023-03-29T17:15:07.053+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 1.51%

Last modified Jun 17, 2026

CVE-2022-48434 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. libavcodec/pthread_frame.c in FFmpeg before 5.1.2, as used in VLC and other products, leaves stale hwaccel state in worker threads, which allows attackers to trigger a use-after-free and execute arbitrary code in some circumstances (e.g., hardware re-initialization upon a mid-video SPS change when Direct3D11 is used).. EPSS estimates a 1.51% chance of exploitation in the next 30 days.

Description

libavcodec/pthread_frame.c in FFmpeg before 5.1.2, as used in VLC and other products, leaves stale hwaccel state in worker threads, which allows attackers to trigger a use-after-free and execute arbitrary code in some circumstances (e.g., hardware re-initialization upon a mid-video SPS change when Direct3D11 is used).

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.51%

71.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Ffmpeg	Ffmpeg	< 5.1.2

References

https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/cc867f2c09d2b69cee8a0eccd62aff002cbbfe11Mailing List, Patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOMB6WRUC55VWV25IKJTV22KARBUGWGQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PQHNSWXFUN3VJ3AO2AEJUK3BURSGM5G2/
https://news.ycombinator.com/item?id=35356201Exploit, Issue Tracking, Third Party Advisory
https://security.gentoo.org/glsa/202312-14
https://wrv.github.io/h26forge.pdfTechnical Description
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/cc867f2c09d2b69cee8a0eccd62aff002cbbfe11Mailing List, Patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOMB6WRUC55VWV25IKJTV22KARBUGWGQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PQHNSWXFUN3VJ3AO2AEJUK3BURSGM5G2/
https://news.ycombinator.com/item?id=35356201Exploit, Issue Tracking, Third Party Advisory
https://security.gentoo.org/glsa/202312-14
https://wrv.github.io/h26forge.pdfTechnical Description

Timeline

Published: Mar 29, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-48434?

How severe is CVE-2022-48434?

CVE-2022-48434 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.51% probability of exploitation in the next 30 days.

How do I fix CVE-2022-48434?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-48434?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST