CVE-2025-66287

Webkitgtk: processing maliciously crafted web content may lead to an unexpected process crash

HIGH 8.8

At a glance

Source: NVD
EPSS: EPSS 0.47 % · percentile 41 (2026-10-28)
State: PUBLISHED
Published: 2025-12-04 16:48 UTC
Updated: 2026-06-29 20:44 UTC
Assigner: redhat
NVD status: Deferred

Description

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

Weaknesses (CWE)

CWE-120 — Buffer Copy without Checking Size of Input

References

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	redhat
CVSS 3.1	HIGH 8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	NVD · secalert@redhat.com (Secondary)

European references

ENISA EUVD · EUVD-2025-201244
GCVE · GCVE-0-2025-66287

Affected products

Product	Versions
The WebKitGTK Team · WebKitGTK	affected 0 < 2.50.3
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support	unaffected 0:2.50.3-2.el7_9 < *
Red Hat · Red Hat Enterprise Linux 8	unaffected 0:2.50.3-1.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Support	unaffected 0:2.50.3-2.el8_2 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	unaffected 0:2.50.3-2.el8_4 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	unaffected 0:2.50.3-2.el8_4 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	unaffected 0:2.50.3-2.el8_6 < *
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Service	unaffected 0:2.50.3-2.el8_6 < *
Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	unaffected 0:2.50.3-2.el8_6 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Service	unaffected 0:2.50.3-2.el8_8 < *
Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	unaffected 0:2.50.3-2.el8_8 < *
Red Hat · Red Hat Enterprise Linux 9	unaffected 0:2.50.3-1.el9_7 < *
Red Hat · Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	unaffected 0:2.50.3-1.el9_0 < *
Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	unaffected 0:2.50.3-1.el9_2 < *
Red Hat · Red Hat Enterprise Linux 9.4 Extended Update Support	unaffected 0:2.50.3-1.el9_4 < *
Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Support	unaffected 0:2.50.3-1.el9_6 < *
Red Hat · Red Hat Enterprise Linux 6
Red Hat · Red Hat Enterprise Linux 7

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD