CVE-2025-43342 Webkitgtk — Exploit & Vulnerability Details CRITICAL

Parameter	Value
CVSS	9.8 (CRITICAL)
Affected Versions	before 26.0
Fixed In	26.0
Type	CWE-20 (Improper Input Validation)
Vendor	Webkitgtk
Public PoC	No

A correctness issue was addressed with improved checks. This issue is fixed in Safari 26, iOS 18.7 and iPadOS 18.7, iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. Processing maliciously crafted web content may lead to an unexpected process crash.

Attack Parameters

Attack Vector

Network

Can be exploited remotely

Attack Complexity

Low

Easy to exploit

Privileges Required

None

No privileges needed

User Interaction

None

No user interaction needed

Impact Assessment

Confidentiality

High

Complete data leak

Integrity

High

Complete data modification

Availability

High

Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

CWE-20 Improper Input Validation

Vulnerable Products 9

Configuration	From (including)	Up to (excluding)
Apple Safari cpe:2.3:a:apple:safari::::::::	—	`26.0`
Apple Ipados cpe:2.3:o:apple:ipados::::::::	—	`18.7`
Apple Iphone_Os cpe:2.3:o:apple:iphone_os::::::::	—	`18.7`
Apple Macos cpe:2.3:o:apple:macos::::::::	—	`26.0`
Apple Tvos cpe:2.3:o:apple:tvos::::::::	—	`26.0`
Apple Visionos cpe:2.3:o:apple:visionos::::::::	—	`26.0`
Apple Watchos cpe:2.3:o:apple:watchos::::::::	—	`26.0`
Webkitgtk Webkitgtk cpe:2.3:a:webkitgtk:webkitgtk::::::::	—	`2.48.7`
Wpewebkit Wpe_Webkit cpe:2.3:a:wpewebkit:wpe_webkit::::::::	—	`2.48.7`