CVE-2025-43421: Apple iPadOS

Medium severity, CVSS 4.3. EPSS: 0.6% chance of exploitation in the next 30 days.

Multiple issues were addressed by disabling array allocation sinking. This issue is fixed in Safari 26.1, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected process crash.

Affected products

• Apple iPadOS: before 26.1 (fixed in 26.1)
• Apple iPhone OS: before 26.1 (fixed in 26.1)
• Apple Safari: before 26.1 (fixed in 26.1)
• Apple visionOS: before 26.1 (fixed in 26.1)

Published 2025-11-04. Last modified 2026-06-17.