CVE-2020-27949: Apple Mac OS X

Medium severity, CVSS 5.5. EPSS: 1% chance of exploitation in the next 30 days.

This issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave. A malicious application may cause unexpected changes in memory belonging to processes traced by DTrace.

Affected products

• Apple Mac OS X: from 10.14, before 10.14.6 (fixed in 10.14.6); from 10.15, before 10.15.7 (fixed in 10.15.7); version 10.14.6 only; version 10.15.7 only
• Apple macOS: from 11.0, before 11.1.0 (fixed in 11.1.0)

Published 2021-04-02. Last modified 2026-06-17.