CVE-2025-43294: Apple macOS

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

An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in iOS 26.1 and iPadOS 26.1, macOS Tahoe 26, tvOS 26.1, watchOS 26.1. An app may be able to access sensitive user data.

Affected products

• Apple macOS: before 26.0 (fixed in 26.0)

Published 2025-09-15. Last modified 2026-06-17.