Description
A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.
Affected products
apple: ipados; apple: iphone os; apple: macos; apple: tvos; apple: visionos; apple: watchos
References7
- support.apple.com/en-us/128066 Release NotesVendor Advisory
- support.apple.com/en-us/128067 Release NotesVendor Advisory
- support.apple.com/en-us/128068 Release NotesVendor Advisory
- support.apple.com/en-us/128069 Release NotesVendor Advisory
- support.apple.com/en-us/128070 Release NotesVendor Advisory
- support.apple.com/en-us/128071 Release NotesVendor Advisory
- support.apple.com/en-us/128072 Release NotesVendor Advisory
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 52 · as of 13 November 2026
- CWE
- CWE-665
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.