CVE-2018-4147: Apple iCloud

Critical severity, CVSS 9.8. EPSS: 1.5% chance of exploitation in the next 30 days.

In iCloud for Windows before 7.3, Safari before 11.0.3, iTunes before 12.7.3 for Windows, and iOS before 11.2.5, multiple memory corruption issues exist and were addressed with improved memory handling.

Affected products

• Apple iCloud: before 7.3 (fixed in 7.3)
• Apple iPhone OS: before 11.2.5 (fixed in 11.2.5)
• Apple iTunes: before 12.7.3 (fixed in 12.7.3)
• Apple Safari: before 11.0.3 (fixed in 11.0.3)

Published 2019-01-11. Last modified 2026-06-17.