CVE-2019-8553: Apple iPhone OS

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

A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2. Clicking a malicious SMS link may lead to arbitrary code execution.

Affected products

• Apple iPhone OS: before 12.2 (fixed in 12.2)
• Apple tvOS: 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.