Executive brief
A security vulnerability has been identified across Apple's operating systems, including iOS, macOS, and watchOS. This flaw could allow a remote user to cause a device to crash or potentially interfere with the core system memory. If exploited, this could lead to service disruptions or unauthorized system behavior on iPhones, iPads, Macs, and other Apple devices.
Technical details
A memory handling vulnerability exists in the kernel of multiple Apple operating systems, including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. The root cause is improper memory management, which can be triggered by a remote attacker to cause a denial-of-service (system termination) or kernel memory corruption. While the specific mechanism of the remote attack is not detailed in the advisory, the impact suggests a high-severity flaw in core system components. Apple has addressed this issue by improving memory handling in the latest software updates.
Affected products
- Apple iOS and iPadOS Before 26.6
- Apple macOS Sequoia Before 15.7.8
- Apple macOS Sonoma Before 14.8.8
- Apple macOS Tahoe Before 26.6
- Apple tvOS Before 26.6
- Apple visionOS Before 26.6
- Apple watchOS Before 26.6
Timeline
- 2026-07-27: disclosed
- 2026-07-27: patched