Race Condition in Apple OS 26.6 Can Cause System Crash
CVE-2026-64720 Published on July 27, 2026
A race condition was addressed with improved state handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.
Vulnerability Analysis
CVE-2026-64720 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Race Condition Vulnerability?
The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.
CVE-2026-64720 has been classified to as a Race Condition vulnerability or weakness.
Products Associated with CVE-2026-64720
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Affected Versions
Apple iOS and iPadOS:- Before 26.6 is affected.
- Before 26.6 is affected.
- Before 26.6 is affected.
- Before 26.6 is affected.