The issue was addressed with improved memory handling. This issue is fixed in iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. An app may be able to cause unexpected system termination or corrupt kernel memory.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 6
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Apple Ipados
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
|
— |
26.4
|
|
Apple Iphone_Os
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
|
— |
26.4
|
|
Apple Macos
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
|
26.0
|
26.4
|
|
Apple Tvos
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
|
— |
26.4
|
|
Apple Visionos
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
|
— |
26.4
|
|
Apple Watchos
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
|
— |
26.4
|
References 5
https://support.apple.com/en-us/126792
product-security@apple.com
https://support.apple.com/en-us/126794
product-security@apple.com
https://support.apple.com/en-us/126797
product-security@apple.com
https://support.apple.com/en-us/126798
product-security@apple.com
https://support.apple.com/en-us/126799
product-security@apple.com