Apple OS OOB Write in System Libraries
CVE-2026-86953 Published on October 20, 2026

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. An attacker in physical proximity may be able to cause a denial-of-service.

NVD

Products Associated with CVE-2026-86953

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Apple Ios And Ipados

Apple macOS

Apple tvOS

Apple visionOS

Apple watchOS

Affected Versions

Apple iOS and iPadOS:

Before 27 is affected.

Apple macOS:

Before 27 is affected.

Apple tvOS:

Before 27 is affected.

Apple visionOS:

Before 27 is affected.

Apple watchOS:

Before 27 is affected.