CVE-2023-40394: Apple iPadOS

Low severity, CVSS 3.3. EPSS: 0.2% chance of exploitation in the next 30 days.

The issue was addressed with improved validation of environment variables. This issue is fixed in iOS 16.6 and iPadOS 16.6. An app may be able to access sensitive user data.

Affected products

• Apple iPadOS: before 16.6 (fixed in 16.6)
• Apple iPhone OS: before 16.6 (fixed in 16.6)

Published 2024-01-10. Last modified 2026-06-17.