CVE-2026-28842: Apple macOS

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

The issue was addressed with improved bounds checks. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination.

Affected products

• Apple macOS: from 26.0, before 26.4 (fixed in 26.4)

Published 2026-03-25. Last modified 2026-06-17.