CVE-2026-43664

Analyzed Analyzed - Analysis Complete

Improper Data Access in Apple iOS and macOS

Publication date: 2026-09-14

Last updated on: 2026-09-15

Assigner: Apple Inc.

Description

This issue was addressed with improved data protection. 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, watchOS 27. An app may be able to access sensitive user data.

CVSS Scores

EPSS Scores

Probability:
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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-2026-43664

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ipados	to 26.7 (exc)
apple	iphone_os	to 26.7 (exc)
apple	macos	From 15.0 (inc) to 15.8 (exc)
apple	macos	From 26.0 (inc) to 26.7 (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 allows an app to potentially access sensitive user data due to insufficient data protection measures in Apple's operating systems.

Detection Guidance

This vulnerability is specific to Apple operating systems and relates to potential unauthorized access to sensitive user data. Detection would require checking if your device is running an affected version of iOS, iPadOS, macOS, tvOS, or watchOS. Update to the latest patched versions mentioned in the advisory to mitigate the risk.

Impact Analysis

An attacker could exploit this to steal personal information, such as passwords or financial data, if they trick you into installing a malicious app.

Compliance Impact

The vulnerability allows an app to access sensitive user data, which could lead to unauthorized data exposure. This may violate compliance requirements under GDPR (data protection principles) and HIPAA (patient data confidentiality) if exploited.

Mitigation Strategies

Update affected devices to the latest versions: iOS 26.7 or later, iPadOS 26.7 or later, iOS 27 or later, iPadOS 27 or later, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, or watchOS 27.

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