CVE-2026-39868

CriticalCVSS 9.1

Published: 29/06/2026(UTC)Updated: 30/06/2026(UTC)Translated: 01/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.37%

29th percentile — higher than 29% of all known CVEs

Summary

A vulnerability in Apple systems allows an app to cause unexpected system termination or corrupt kernel memory. The issue was addressed with improved input validation.

Risk Assessment

The risk includes potential destabilization of the operating system and corruption of critical kernel memory structures, which may lead to crashes or system integrity compromise.

Recommendation

It is recommended to immediately update systems to iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2.

Original NVD description (English source)

This issue was addressed with improved input validation. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. An app may be able to cause unexpected system termination or corrupt kernel memory.