CVE-2020-3915: Apple Mac OS X

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

A path handling issue was addressed with improved validation. This issue is fixed in macOS Catalina 10.15.4. A malicious application may be able to overwrite arbitrary files.

Affected products

• Apple Mac OS X: before 10.15.4 (fixed in 10.15.4)

Published 2020-10-22. Last modified 2026-06-17.