CVE-2019-8582: Apple iCloud

Medium severity, CVSS 5.5. EPSS: 1.4% chance of exploitation in the next 30 days.

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iCloud for Windows 7.12, tvOS 12.3, iTunes 12.9.5 for Windows, macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra, iOS 12.3. Processing a maliciously crafted font may result in the disclosure of process 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)

Published 2020-10-27. Last modified 2026-06-17.