Executive brief
A vulnerability in Apple's mobile and desktop operating systems could allow a malicious application to crash the device. This issue affects iPhones, iPads, and Macs, potentially leading to unexpected system shutdowns and loss of unsaved data. Users should update to the latest software versions to resolve this stability issue.
Technical details
A race condition was identified in the state handling logic of iOS, iPadOS, and macOS. By exploiting this flaw, a locally installed malicious application can trigger an unexpected system termination (denial of service). The vulnerability was addressed by improving state handling within the operating system kernel or core components. The issue is fixed in iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2.
Affected products
- Apple iOS Before 26.5.2
- Apple iPadOS Before 26.5.2
- Apple macOS Tahoe Before 26.5.2
Timeline
- 2026-06-29: disclosed
- 2026-06-29: patched