CVE-2020-9947: Apple iCloud

High severity, CVSS 8.8. EPSS: 1.8% chance of exploitation in the next 30 days.

A use after free issue was addressed with improved memory management. This issue is fixed in watchOS 7.0, iOS 14.0 and iPadOS 14.0, iTunes for Windows 12.10.9, iCloud for Windows 11.5, tvOS 14.0, Safari 14.0. Processing maliciously crafted web content may lead to arbitrary code execution.

Affected products

• Apple iCloud: before 11.5.0 (fixed in 11.5.0)
• Apple iPadOS: before 14.0 (fixed in 14.0)
• Apple iPhone OS: before 14.0 (fixed in 14.0)
• Apple iTunes: from 12.0.0, before 12.10.9 (fixed in 12.10.9)
• Apple Safari: before 14.0 (fixed in 14.0)
• Apple tvOS: before 14.0 (fixed in 14.0)
• Apple watchOS: before 7.0 (fixed in 7.0)

Published 2020-12-08. Last modified 2026-06-17.