CVE-2024-23222: Apple Multiple Products WebKit Type Confusion Vulnerability

High severity, CVSS 8.8. Actively exploited: in CISA KEV since 2024-01-23. EPSS: 10.6% chance of exploitation in the next 30 days.

A type confusion issue was addressed with improved checks. This issue is fixed in Safari 17.3, iOS 15.8.7 and iPadOS 15.8.7, iOS 16.7.5 and iPadOS 16.7.5, iOS 17.3 and iPadOS 17.3, macOS Monterey 12.7.3, macOS Sonoma 14.3, macOS Ventura 13.6.4, tvOS 17.3, visionOS 1.0.2. Processing maliciously crafted web content may lead to arbitrary code execution. This fix associated with the Coruna exploit was shipped in iOS 17.3 on January 22, 2024. This update brings that fix to devices that cannot update to the latest iOS version.

Affected products

• Apple iPadOS: before 15.8.7 (fixed in 15.8.7); from 16.0, before 16.7.5 (fixed in 16.7.5); from 17.0, before 17.3 (fixed in 17.3)
• Apple iPhone OS: before 15.8.7 (fixed in 15.8.7); from 16.0, before 16.7.5 (fixed in 16.7.5); from 17.0, before 17.3 (fixed in 17.3)
• Apple macOS: from 12.0, before 12.7.3 (fixed in 12.7.3); from 13.0, before 13.6.4 (fixed in 13.6.4); from 14.0, before 14.3 (fixed in 14.3)
• Apple Safari: before 17.3 (fixed in 17.3)
• Apple tvOS: before 17.3 (fixed in 17.3)
• Apple visionOS: before 1.0.2 (fixed in 1.0.2)

Published 2024-01-23. Last modified 2026-06-17.