CVE-2018-4179: Apple Mac OS X

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

In macOS High Sierra before 10.13.4, there was an issue with the handling of smartcard PINs. This issue was addressed with additional logic.

Affected products

• Apple Mac OS X: from 10.13.0, before 10.13.4 (fixed in 10.13.4)

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