Security Advisory
CVE-2017-13871
CVE vulnerability detail — eXtreme Datacenter Security Operations
Description
An issue was discovered in certain Apple products. macOS before 10.13.2 is affected. The issue involves the "Mail" component. It allows remote attackers to read cleartext e-mail content (for which S/MIME encryption was intended) by leveraging the lack of installation of an S/MIME certificate by the recipient.