CVE-2019-8702: Apple iPhone OS

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

This issue was addressed with a new entitlement. This issue is fixed in macOS Mojave 10.14.6, Security Update 2019-004 High Sierra, Security Update 2019-004 Sierra, iOS 12.4, tvOS 12.4. A local user may be able to read a persistent account identifier.

Affected products

• Apple iPhone OS: before 12.4 (fixed in 12.4)
• Apple Mac OS X: before 10.14.6 (fixed in 10.14.6); from 10.12, before 10.12.6 (fixed in 10.12.6); from 10.13, before 10.13.6 (fixed in 10.13.6); version 10.12.6 only; version 10.13.6 only
• Apple tvOS: before 12.4 (fixed in 12.4)

Published 2021-12-23. Last modified 2026-06-17.