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

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: yes — in CISA KEV since 2024-01-23
EPSS: 10.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-01-23 · updated 2026-06-17
Weakness: CWE-843

Description

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; from 16.0 before 16.7.5; from 17.0 before 17.3 — fixed in 15.8.7, 16.7.5, 17.3
Apple Iphone Os: before 15.8.7; from 16.0 before 16.7.5; from 17.0 before 17.3 — fixed in 15.8.7, 16.7.5, 17.3
Apple macOS: from 12.0 before 12.7.3; from 13.0 before 13.6.4; from 14.0 before 14.3 — fixed in 12.7.3, 13.6.4, 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

How to fix

Upgrade to a fixed version: Apple iPadOS 15.8.7, 16.7.5, 17.3; Apple Iphone Os 15.8.7, 16.7.5, 17.3; Apple macOS 12.7.3, 13.6.4, 14.3; Apple Safari 17.3; Apple tvOS 17.3; Apple visionOS 1.0.2. Check the vendor advisory for mitigations.

References

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