Apple WebKit Denial-of-Service Vulnerability

Vulnerability

A denial-of-service vulnerability has been identified in WebKit, the engine that powers the Safari browser and other applications on Apple devices. This vulnerability is present in multiple operating systems, including iOS 18.7.9, iPadOS 18.7.9, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, and watchOS 26.5. The issue arises from improper memory handling, which can lead to an unexpected process crash when processing maliciously crafted web content.

Impact

Exploitation of this vulnerability can cause an unexpected process crash, leading to a denial-of-service condition.

Added: May 11, 2026, 10:24 PM
Updated: May 11, 2026, 10:24 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
0.6
exploitability
4.2
remediation
7.7
relevance
8.0
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.