CVE-2025-66287

Name: CVE-2025-66287
Creator: NVD / NIST
Published: 2025-12-04T17:15:56.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.39%

Last modified Jun 25, 2026

CVE-2025-66287 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A flaw was found in WebKitGTK. Processing malicious web content can cause an unexpected process crash due to improper memory handling.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.39%

30.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

References

Timeline

Published: Dec 4, 2025
Last Modified: Jun 25, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-66287?

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

How severe is CVE-2025-66287?

CVE-2025-66287 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2025-66287?

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-2025-66287?

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

Scan your code now

Source: NVD / NIST