CVE-2025-43494: Apple iPadOS

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

A mail header parsing issue was addressed with improved checks. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. An attacker may be able to cause a persistent denial-of-service.

Affected products

• Apple iPadOS: before 18.7.2 (fixed in 18.7.2); version 26.0 only
• Apple iPhone OS: before 18.7.2 (fixed in 18.7.2); version 26.0 only
• Apple macOS: from 14.0, before 14.8.2 (fixed in 14.8.2); from 15.0, before 15.7.2 (fixed in 15.7.2); version 26.0 only
• Apple visionOS: before 26.1 (fixed in 26.1)
• Apple watchOS: before 26.1 (fixed in 26.1)

Published 2025-12-12. Last modified 2026-10-07.