CVE-2026-43778

CriticalCVSS 9.8

Published: 27/07/2026(UTC)Updated: 29/07/2026(UTC)Translated: 28/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.46%

38th percentile - higher than 38% of all known CVEs

Summary

Improved memory management for use-after-free across multiple Apple systems. An app may cause unexpected system termination or corrupt kernel memory.

Risk Assessment

Risk of system crash (DoS) or kernel memory corruption, potentially leading to system instability and possible privilege escalation.

Recommendation

Update all Apple devices to the latest versions listed in the description.

Original NVD description (English source)

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination or corrupt kernel memory.