CVE-2023-27953: Apple macOS

Critical severity, CVSS 9.8. EPSS: 1.6% chance of exploitation in the next 30 days.

The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, macOS Big Sur 11.7.5. A remote user may be able to cause unexpected system termination or corrupt kernel memory.

Affected products

• Apple macOS: from 11.0, before 11.7.5 (fixed in 11.7.5); from 12.0, before 12.6.4 (fixed in 12.6.4); from 13.0, before 13.3 (fixed in 13.3)

Published 2023-05-08. Last modified 2026-06-17.