CVE-2026-43748

CriticalCVSS 9.8

Published: 27/07/2026(UTC)Updated: 28/07/2026(UTC)Translated: 28/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.36%

28th percentile - higher than 28% of all known CVEs

Summary

An out-of-bounds write issue in macOS may cause unexpected system termination by an app. This is fixed in macOS Sequoia 15.7.8 and macOS Tahoe 26.6.

Risk Assessment

This vulnerability could lead to system crashes (DoS), disrupting services and potentially requiring manual restart.

Recommendation

Update to macOS Sequoia 15.7.8 or macOS Tahoe 26.6 to mitigate the risk.

Original NVD description (English source)

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.