The version of Apple iOS running on the mobile device is prior to 12.1.4. It is, therefore, affected by multiple vulnerabilities:
A logic issue in the handling of Group FaceTime calls could allow the initiator to cause the recipient to answer. (CVE-2019-6223)
An unspecified memory corruption issue in Foundation could lead to an application gaining elevated privileges. (CVE-2019-7286)
An unspecified memory corruption issue in IOKit could lead to an application executing arbitrary code with kernel privileges.
(CVE-2019-7287)
An unspecified issue with Live Photos in FaceTime.
(CVE-2019-7288)
Binary data 700557.prm