What’s Vulnerable › Vulnerabilities

CVE-2022-42856: Apple iOS Type Confusion Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-12-14
• EPSS: 8.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-12-15 · updated 2026-06-17
• Weakness: CWE-843

Description

A type confusion issue was addressed with improved state handling. This issue is fixed in Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2 and iPadOS 15.7.2, iOS 16.1.2. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.1..

Affected products

• Apple iPadOS: before 15.7.2 — fixed in 15.7.2
• Apple Iphone Os: before 15.7.2; from 16.0 before 16.1.2 — fixed in 15.7.2, 16.1.2
• Apple macOS: before 13.1 — fixed in 13.1
• Apple Safari: before 16.2 — fixed in 16.2
• Apple tvOS: before 16.2 — fixed in 16.2

How to fix

Upgrade to a fixed version: Apple iPadOS 15.7.2; Apple Iphone Os 15.7.2, 16.1.2; Apple macOS 13.1; Apple Safari 16.2; Apple tvOS 16.2. Check the vendor advisory for mitigations.

References

• http://seclists.org/fulldisclosure/2022/Dec/21
• http://seclists.org/fulldisclosure/2022/Dec/22
• http://seclists.org/fulldisclosure/2022/Dec/23
• http://seclists.org/fulldisclosure/2022/Dec/26
• http://seclists.org/fulldisclosure/2022/Dec/28
• http://www.openwall.com/lists/oss-security/2022/12/26/1
• https://security.gentoo.org/glsa/202305-32
• https://support.apple.com/en-us/HT213516
• https://support.apple.com/en-us/HT213531
• https://support.apple.com/en-us/HT213532
• https://support.apple.com/en-us/HT213535
• https://support.apple.com/en-us/HT213537

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