CVE-2019-8699: Apple iPhone OS

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

A logic issue existed in the handling of answering phone calls. The issue was addressed with improved state management. This issue is fixed in iOS 12.4. The initiator of a phone call may be able to cause the recipient to answer a simultaneous Walkie-Talkie connection.

Affected products

• Apple iPhone OS: before 12.4 (fixed in 12.4)

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