Memory Handling Flaw in WebKitGTK Affects Multiple Versions
CVE-2025-66287

8.8HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Vendor
CVE Published:
4 December 2025

What is CVE-2025-66287?

A vulnerability has been identified in WebKitGTK that arises from improper memory handling when processing malicious web content. This flaw could potentially lead to unexpected process crashes, severely impacting the usability and security of applications relying on WebKitGTK. Users are encouraged to review the relevant security advisories to understand the implications and take appropriate actions to mitigate risks.

References

https://access.redhat.com/security/cve/CVE-2025-66287
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2418857
issue-trackingx_refsource_REDHAT
https://webkitgtk.org/security/WSA-2025-0009.html

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-66287 : Memory Handling Flaw in WebKitGTK Affects Multiple Versions