CVE-2019-8598: Apple iCloud

Medium severity, CVSS 5.5. EPSS: 10.3% chance of exploitation in the next 30 days.

An input validation issue was addressed with improved input validation. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1, iTunes for Windows 12.9.5, iCloud for Windows 7.12. A malicious application may be able to read restricted memory.

Affected products

• Apple iCloud: before 7.12 (fixed in 7.12)
• Apple iPhone OS: before 12.3 (fixed in 12.3)
• Apple iTunes: before 12.9.5 (fixed in 12.9.5)
• Apple Mac OS X: before 10.14.5 (fixed in 10.14.5)
• Apple tvOS: before 12.3 (fixed in 12.3)
• Apple watchOS: before 5.2.1 (fixed in 5.2.1)

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