CVE-2025-63757

Name: CVE-2025-63757
Creator: NVD / NIST
Published: 2025-12-18T15:15:56.75+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2025-63757 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Integer overflow vulnerability in the yuv2ya16_X_c_template function in libswscale/output.c in FFmpeg 8.0.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

Integer overflow vulnerability in the yuv2ya16_X_c_template function in libswscale/output.c in FFmpeg 8.0.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.32%

23.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Ffmpeg	Ffmpeg	8

References

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20698Issue Tracking
https://ffmpeg.org/security.htmlProduct
https://gist.github.com/miora-sora/43c1c5616dd5b4f960a9d20296ef4833Patch

Timeline

Published: Dec 18, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-63757?

Integer overflow vulnerability in the yuv2ya16_X_c_template function in libswscale/output.c in FFmpeg 8.0.

How severe is CVE-2025-63757?

CVE-2025-63757 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2025-63757?

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-2025-63757?

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

Scan your code now

Source: NVD / NIST