CVE-2025-66287

Advisory lineage Upstream: 0 Downstream: 20
Awaiting Analysis
Published: 04 Dec 2025, 16:48
Last modified:22 Dec 2025, 20:49

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.8 HIGH
v3.1 (cve.org)
EPSS Score
0.1% LOW
0% probability +0.03%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

04 Dec 2025, 16:48
Published
Vulnerability first disclosed
22 Dec 2025, 20:49
Last Modified
Vulnerability information updated

Description

A flaw was found in WebKitGTK. Processing malicious web content can cause an unexpected process crash due to improper memory handling.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.10%• Percentile: 28%

Techniques & Countermeasures

  • CWE-120•Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

    The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Affected Systems

  • the webkitgtk team•webkitgtk

    < 2.50.3

References (14)