CVE-2025-66287

HIGH

WebKitGTK - Memory Corruption

Title source: llm
STIX 2.1

Description

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

References (14)

Core 14
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:22789
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:22790
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:23110
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:23433
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:23434
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:23451
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:23452
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:23583
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:23591
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:23742
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2025:23743
Vendor Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2025-66287
Issue Tracking issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2418857

Scores

CVSS v3 8.8
EPSS 0.0010
EPSS Percentile 27.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (18)
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Enterprise Linux 7
Red Hat/Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:2.50.3-2.el7_9
Red Hat/Red Hat Enterprise Linux 8 0:2.50.3-1.el8_10
Red Hat/Red Hat Enterprise Linux 8.2 Advanced Update Support 0:2.50.3-2.el8_2
Red Hat/Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:2.50.3-2.el8_4
Red Hat/Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:2.50.3-2.el8_4
Red Hat/Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:2.50.3-2.el8_6
Red Hat/Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:2.50.3-2.el8_6
Red Hat/Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:2.50.3-2.el8_6
... and 8 more
Published Dec 04, 2025
Tracked Since Feb 18, 2026