CVE-2023-27936: Apple iPadOS

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Ventura 13.3, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4, macOS Big Sur 11.7.5. An app may be able to cause unexpected system termination or write kernel memory.

Affected products

• Apple iPadOS: before 15.7.4 (fixed in 15.7.4)
• Apple iPhone OS: before 15.7.4 (fixed in 15.7.4)
• Apple macOS: before 11.7.5 (fixed in 11.7.5); from 12.0, before 12.6.4 (fixed in 12.6.4); from 13.0, before 13.3 (fixed in 13.3)

Published 2023-05-08. Last modified 2026-06-17.