CVE-2025-43366: Apple macOS

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Tahoe 26. An app may be able to disclose coprocessor memory.

Affected products

• Apple macOS: before 26.0 (fixed in 26.0)

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