CVE-2019-8624: Apple watchOS

High severity, CVSS 7.5. EPSS: 6.9% chance of exploitation in the next 30 days.

An out-of-bounds read was addressed with improved input validation. This issue is fixed in watchOS 5.3. A remote attacker may be able to leak memory.

Affected products

• Apple watchOS: before 5.3 (fixed in 5.3)

Published 2019-12-18. Last modified 2026-06-17.