CVE-2023-32373: Apple Multiple Products WebKit Use-After-Free Vulnerability

High severity, CVSS 8.8. Actively exploited: in CISA KEV since 2023-05-22. EPSS: 12.2% chance of exploitation in the next 30 days.

A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. 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 15.7.6 (fixed in 15.7.6); from 16.0, before 16.5 (fixed in 16.5)
• Apple iPhone OS: from 15.0, before 15.7.6 (fixed in 15.7.6); from 16.0, before 16.5 (fixed in 16.5)
• Apple macOS: before 13.4 (fixed in 13.4)
• Apple Safari: before 16.5 (fixed in 16.5)
• Apple tvOS: before 16.5 (fixed in 16.5)
• Apple watchOS: before 9.5 (fixed in 9.5)
• Red Hat Enterprise Linux: version 6.0 only; version 7.0 only; version 8.0 only; version 9.0 only
• WebKitGTK Webkitgtk+: before 2.42.3 (fixed in 2.42.3)

Published 2023-06-23. Last modified 2026-06-17.