High severity · published Dec 18, 2025
CVE-2025-63757
Integer overflow vulnerability in the yuv2ya16_X_c_template function in libswscale/output.c in FFmpeg 8.0
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
Integer overflow vulnerability in the yuv2ya16_X_c_template function in libswscale/output.c in FFmpeg 8.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FF
Ffmpeg · Ffmpeg
8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-63757
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-63757
Issue Tracking
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20698
Product
https://ffmpeg.org/security.html
Patch
https://gist.github.com/miora-sora/43c1c5616dd5b4f960a9d20296ef4833
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