CVE-2025-63757 Integer overflow in n/a
High 7.5
Published
Updated
Check this codebase for CVE-2025-63757 and fix it if it is affected.
What it is: CVE-2025-63757 is a high-severity vulnerability in Ffmpeg Ffmpeg, published on 18 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-63757 in the wild and no public exploit code.
Affected product: Ffmpeg Ffmpeg. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2025-63757/ (Markdown: https://insights.sbomify.com/CVE-2025-63757/index.md)
An integer overflow in FFmpeg's scaling library can cause a denial of service, requiring users to update the library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-63757?
CVE-2025-63757 is a high-severity vulnerability in Ffmpeg Ffmpeg, published on 18 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Integer overflow vulnerability in the yuv2ya16_X_c_template function in libswscale/output.c in FFmpeg 8.0.
Weakness: CWE-190
Which versions are affected by CVE-2025-63757?
It affects 1 product.
Linux distribution packages (2)
ffmpeg-4 openSUSE:Leap 16.0 | All versions | 4.4.5-bp160.2.1 |
ffmpeg-4 openSUSE:Tumbleweed | All versions | 4.4.6-11.1 |
Products include Ffmpeg Ffmpeg.
How do I fix CVE-2025-63757?
Apply the vendor's patch.
Is CVE-2025-63757 being exploited?
There is no known exploitation of CVE-2025-63757 in the wild and no public exploit code.
Other vulnerabilities in Ffmpeg Ffmpeg
Sources
Also known as DEBIAN-CVE-2025-63757, GHSA-r65g-q984-5j72, openSUSE-SU-2026:10053-1, openSUSE-SU-2026:20064-1.