CVE-2017-13860

CVE-2017-13860 describes a vulnerability in Apple's Mail Drafts component affecting iOS before 11.2 and macOS before 10.13.2. This flaw allows a man-in-the-middle attacker to read S/MIME encrypted email content due to mishandling of credential encryption. Rated as Medium severity (CVSS 5.9), the attack requires high complexity but can be executed remotely without user interaction, leading to a high confidentiality impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.