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9.1
CVE-2026-39868: iOS, iPadOS, macOS: Malicious App Crashes System
CVE-2026-39868
Summary
A security issue in iOS, iPadOS, and macOS allowed a malicious app to crash the system or damage its memory. This has been fixed in recent updates, but it's essential to install the latest versions to stay protected. If you're using one of these operating systems, make sure to update as soon as possible.
Original title
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 corrup...
Original description
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.
Vulnerability type
CWE-20
Improper Input Validation
Published: 29 Jun 2026 · Updated: 23 Jul 2026 · First seen: 29 Jun 2026