CVE-2019-8699

HIGH

iPhone OS < 12.4 - Unauthenticated Call Handling Logic Issue

Title source: llm

Description

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.

References (1)

Core 1

Core References

Vendor Advisory x_refsource_misc

https://support.apple.com/HT210346

Scores

CVSS v3 7.5

EPSS 0.0134

EPSS Percentile 68.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

Status published

Products (1)

apple/iphone_os < 12.4

Published Dec 18, 2019

Tracked Since Feb 18, 2026