CVE-2018-4217: Apple Mac OS X

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

In macOS High Sierra before 10.13.5, a privacy issue in the handling of Open Directory records was addressed with improved indexing.

Affected products

• Apple Mac OS X: before 10.13.5 (fixed in 10.13.5)

Published 2019-01-11. Last modified 2026-06-17.