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CVE-2025-63757

27
FAUCET Score

CVE-2025-63757 is an integer overflow vulnerability in the yuv2ya16_X_c_template function within libswscale/output.c of FFmpeg 8.0. This flaw carries a high severity CVSS score of 7.5, indicating it can be exploited remotely with low attack complexity, leading to a high impact on availability without requiring user interaction or privileges. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
8CPE matchmatch criteria
cpe:2.3:a:ffmpeg:ffmpeg:8:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 7th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2025-63757Moderate

ffmpeg: FFmpeg: Integer overflow vulnerability leads to Denial of Service

Dec 18, 2025

References

code.ffmpeg.org / FFmpeg/FFmpeg/pulls/20698
Issue Tracking
ffmpeg.org / security.html
Product
gist.github.com / miora-sora/43c1c5616dd5b4f960a9d20296ef4833
Patch