What’s Vulnerable › Vulnerabilities

CVE-2023-32439: Apple Multiple Products WebKit Type Confusion Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2023-06-23
• EPSS: 24.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-23 · updated 2026-06-17
• Weakness: CWE-843

Description

A type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5.1 and iPadOS 16.5.1, iOS 15.7.7 and iPadOS 15.7.7, macOS Ventura 13.4.1, Safari 16.5.1. 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.

Affected products

• Apple iPadOS: before 15.7.7; from 16.0 before 16.5.1 — fixed in 15.7.7, 16.5.1
• Apple Iphone Os: before 15.7.7; from 16.0 before 16.5.1 — fixed in 15.7.7, 16.5.1
• Apple macOS: from 13.0 before 13.4.1 — fixed in 13.4.1
• Apple Safari: before 16.5.1 — fixed in 16.5.1
• Webkitgtk+: before 2.42.3 — fixed in 2.42.3

How to fix

Upgrade to a fixed version: Apple iPadOS 15.7.7, 16.5.1; Apple Iphone Os 15.7.7, 16.5.1; Apple macOS 13.4.1; Apple Safari 16.5.1; Webkitgtk+ 2.42.3. Check the vendor advisory for mitigations.

References

• https://security.gentoo.org/glsa/202401-04
• https://support.apple.com/en-us/HT213811
• https://support.apple.com/en-us/HT213813
• https://support.apple.com/en-us/HT213814
• https://support.apple.com/en-us/HT213816
• https://support.apple.com/kb/HT213814
• https://support.apple.com/kb/HT213816
• https://security.gentoo.org/glsa/202401-04
• https://support.apple.com/en-us/HT213811
• https://support.apple.com/en-us/HT213813
• https://support.apple.com/en-us/HT213814
• https://support.apple.com/en-us/HT213816

Get alerted when CVE-2023-32439 or the next vulnerability affects your stack