CVE-2018-4229: Apple Mac OS X

Critical severity, CVSS 10.0. EPSS: 2.1% chance of exploitation in the next 30 days.

An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the "Grand Central Dispatch" component. It allows attackers to bypass a sandbox protection mechanism by leveraging the misparsing of entitlement plists.

Affected products

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

Published 2018-06-08. Last modified 2026-06-17.