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CVE-2025-66287

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

Published: Dec 4, 2025Updated: Dec 22, 2025 Sources: CVE List NVD BDUCWE-120
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.4%
Top 69.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-120

Affected Products

Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
WebKitGTKСообщество свободного программного обеспечения
LibraryLibrary
OSS Libraries / generic-library
WPE WebKitСообщество свободного программного обеспечения
LibraryLibrary
Operating Systems
WebKitGTKThe WebKitGTK Team
Mixed
OSS Libraries / generic-library
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat
On-premOS
Operating Systems / linux-distro
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
the webkitgtk teamoss-projectOSS Libraries
red hatcommercialUSOperating Systemsaka red hat
and 16 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://nvd.nist.gov/vuln/detail/CVE-2025-66287
nvd.nist.gov
https://security-tracker.debian.org/tracker/CVE-2025-66287
security-tracker.debian.org
https://webkitgtk.org/security/WSA-2025-0009.html
webkitgtk.org
and 17 more references View all →

Timeline

Published
Dec 4, 2025
Last Updated
Dec 22, 2025

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