CVE-2026-38344: Null Pointer Dereference
Published Aug 27, 2026
·Updated
A NULL pointer dereference in the getminbuffersize function (/libswscale/slice.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denial of Service (DoS) via supplying a crafted video file.
Affected Software
2 affected componentsFixes available
FFmpeg FFmpeg=N-122528-gdd2976b9e1
debian/ffmpeg
7:5.1.9-0+deb12u17:7.1.5-0+deb13u17:9.0.2-17:9.0.2-3
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/ffmpegto a version that resolves this vulnerability.Fixed in 7:5.1.9-0+deb12u1Fixed in 7:7.1.5-0+deb13u1Fixed in 7:9.0.2-1Fixed in 7:9.0.2-3
Event History
Aug 27, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Aug 28, 2026
Data Sourced
via NVD·12:17 AM
DescriptionSeverityWeakness
Oct 13, 2026
Data Sourced
via Launchpad·05:30 AM
Description
Data Sourced
via Debian·05:30 AM
DescriptionAffected Software
Oct 14, 2026
Data Sourced
via Ubuntu·05:29 AM
RemedyDescriptionSeverityAffected Software
Frequently Asked Questions
1
What does an attacker need to do to trigger the denial of service?
The attacker needs to supply a crafted video file that reaches the affected get_min_buffer_size function in libswscale/slice.c.
2
Who is exposed to this issue?
Systems using the identified FFmpeg build, N-122528-gdd2976b9e1, may be exposed if they process attacker-supplied video files.