CVE-2017-13909

CVE-2017-13909 describes a local privilege escalation vulnerability in macOS High Sierra 10.13, where sensitive iCloud authentication tokens were improperly stored. A local attacker could exploit this flaw to gain unauthorized access to these tokens. The vulnerability has a CVSS score of 5.5 (Medium), indicating a low attack complexity and requiring local access, with a high impact on confidentiality. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.