CVE-2026-43761: Apple macOS

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Mounting a malicious disk image may cause unexpected system termination.

Affected products

• Apple macOS: from 14.0, before 14.8.8 (fixed in 14.8.8); from 15.0, before 15.7.8 (fixed in 15.7.8); from 26.0, before 26.6 (fixed in 26.6)

Published 2026-09-14. Last modified 2026-09-15.