CVE-2019-8759: Apple Mac OS X

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, macOS Catalina 10.15. A local user may be able to cause unexpected system termination or read kernel memory.

Affected products

• Apple Mac OS X: before 10.15.1 (fixed in 10.15.1)

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