CVE-2026-28848: Apple macOS

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.7, macOS Tahoe 26.5. A remote attacker may be able to cause unexpected system termination.

Affected products

• Apple macOS: from 15.0, before 15.7.7 (fixed in 15.7.7); from 26.0, before 26.5 (fixed in 26.5)

Published 2026-05-11. Last modified 2026-06-17.