CVE-2019-8640: Apple Mac OS X

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

A logic issue was addressed with improved validation. This issue is fixed in macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra. A sandboxed process may be able to circumvent sandbox restrictions.

Affected products

• Apple Mac OS X: before 10.14.5 (fixed in 10.14.5)

Published 2020-10-27. Last modified 2026-06-17.