CVE-2026-43687

Analyzed Analyzed - Analysis Complete

Memory Disclosure in Apple iOS and macOS via NFS Server

Publication date: 2026-09-14

Last updated on: 2026-09-15

Assigner: Apple Inc.

Description

The issue was addressed with improved memory handling. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. Connecting to a malicious NFS server may disclose kernel memory.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-14

Last Modified

2026-09-15

Generated

2026-10-05

AI Q&A

2026-09-15

EPSS Evaluated

2026-10-04

NVD

CVE-2026-43687

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ipados	to 26.7 (exc)
apple	iphone_os	to 26.7 (exc)
apple	macos	From 26.0 (inc) to 26.7 (exc)
apple	visionos	to 27.0 (exc)
apple	watchos	to 27.0 (exc)
apple	tvos	to 27.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

Executive Summary

This vulnerability involves a memory handling issue in Apple operating systems. When a user connects to a malicious NFS server, it may result in the disclosure of kernel memory. The issue was addressed in specific versions of iOS, iPadOS, macOS, tvOS, visionOS, and watchOS.

Detection Guidance

This vulnerability involves kernel memory disclosure when connecting to a malicious NFS server. Detection requires monitoring network connections to NFS servers and checking for unusual memory access patterns. No specific commands are provided in the context.

Impact Analysis

If exploited, this vulnerability could allow an attacker to access sensitive kernel memory on your device. This might lead to unauthorized data exposure, potential system compromise, or further attacks leveraging the disclosed memory contents.

Compliance Impact

The vulnerability involves potential disclosure of kernel memory when connecting to a malicious NFS server. This could lead to unauthorized access to sensitive data, which may impact compliance with standards like GDPR (data protection) and HIPAA (health information privacy) if exploited.

Mitigation Strategies

Update affected devices to the latest versions: iOS 26.7 or later, iPadOS 26.7 or later, macOS Golden Gate 27, macOS Tahoe 26.7, tvOS 27, visionOS 27, or watchOS 27. Avoid connecting to untrusted NFS servers until patched.

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