The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Sequoia 15.8, macOS Tahoe 26.6.2, tvOS 27,...
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HLow · next 30 days
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The issue was addressed with improved memory handling. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Sequoia 15.8, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause unexpected system termination or corrupt kernel memory.
Proof-of-concept for a fixed PAC diversifier bypass in the tmpfs setxattr handler on iOS 26.6, demonstrating reachability of the vulnerable signing path from userspace.
Perl proof-of-concept exploit demonstrating a use-after-free in the NECP trie, with a heap spray option for triggering the kernel memory corruption.
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