CVE-2019-8541: Apple iPhone OS

Low severity, CVSS 3.3. EPSS: 0.3% chance of exploitation in the next 30 days.

A privacy issue existed in motion sensor calibration. This issue was addressed with improved motion sensor processing. This issue is fixed in iOS 12.2, watchOS 5.2. A malicious app may be able to track users between installs.

Affected products

• Apple iPhone OS: before 12.2 (fixed in 12.2)
• Apple watchOS: before 5.2 (fixed in 5.2)

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