An out-of-bounds write issue was addressed with improved bounds checking.

iOS 26.0.1 and iPadOS 26.0.1
Released September 29, 2025

FontParser
Available for: iPhone 11 and later, iPad Pro 12.9-inch 3rd generation and later, iPad Pro 11-inch 1st generation and later, iPad Air 3rd generation and later, iPad 8th generation and later, and iPad mini 5th generation and later

Impact: Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory

Description: An out-of-bounds write issue was addressed with improved bounds checking.

CVE-2025-43400: Apple