CVE-2026-38345 Denial of service in n/a
Attackers can cause a denial of service in FFmpeg by providing crafted input that triggers a division-by-zero error in the scaling utility.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-38345?
CVE-2026-38345 is a medium-severity denial of service vulnerability in n/a, published on 27 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A Division-by-Zero vulnerability in the ff_sws_init_single_context function (/libswscale/utils.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denial of Service (DoS) via a crafted input.
Weakness: CWE-369
Which versions are affected by CVE-2026-38345?
How do I fix CVE-2026-38345?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-38345 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-38345 exists.
Sources
Also known as DEBIAN-CVE-2026-38345, GHSA-rgh2-m3vh-23hp, UBUNTU-CVE-2026-38345.