Apple OS kernel use-after-free via NFS (fixed in 26.7/27)
CVE-2026-43686 Published on September 14, 2026

A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. Connecting to a malicious NFS server may lead to kernel memory corruption.

NVD

Vulnerability Analysis

CVE-2026-43686 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is a Dangling pointer Vulnerability?

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

CVE-2026-43686 has been classified to as a Dangling pointer vulnerability or weakness.


Products Associated with CVE-2026-43686

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Apple iOS
 
Apple iPadOS
 
Apple macOS
 
Apple tvOS
 
Apple watchOS
 
Apple visionOS
 
Apple Ios And Ipados
 

Affected Versions

Apple iOS and iPadOS: Apple macOS: Apple tvOS: Apple visionOS: Apple watchOS: