A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 26.3, tvOS 26.3, macOS Tahoe 26.3, visionOS 26.3, iOS 26.3 and iPadOS 26.3. An attacker with memory write capability may be able to execute arbitrary code.
Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 and CVE-2025-43529 were also issued in response to this report.
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:*:*:*:*:*:*:*:*
|
— |
26.3
|
|
Apple Iphone_Os
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
|
— |
26.3
|
|
Apple Macos
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
|
— |
26.3
|
|
Apple Tvos
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
|
— |
26.3
|
|
Apple Visionos
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
|
— |
26.3
|
|
Apple Watchos
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
|
— |
26.3
|
References 6
https://support.apple.com/en-us/126346
product-security@apple.com
https://support.apple.com/en-us/126348
product-security@apple.com
https://support.apple.com/en-us/126351
product-security@apple.com
https://support.apple.com/en-us/126352
product-security@apple.com
https://support.apple.com/en-us/126353
product-security@apple.com
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026…
134c704f-9b21-4f2e-91b3-4a467353bcc0