CVE-2026-84606

Undergoing Analysis Undergoing Analysis - In Progress

Privacy Issue in iOS, iPadOS, macOS, and visionOS

Publication date: 2026-09-14

Last updated on: 2026-09-15

Assigner: Apple Inc.

Description

A privacy issue was addressed with improved handling of identifiers. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. An app may be able to identify a user across reinstalls.

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-2026-84606

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ios	27
apple	ipad_os	27
apple	macos_golden_gate	27
apple	visionos	27

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-287	When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
CWE-359	The product does not properly prevent a person's private, personal information from being accessed by actors who either (1) are not explicitly authorized to access the information or (2) do not have the implicit consent of the person about whom the information is collected.
CWE-330	The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

Attack-Flow Graph

Executive Summary

This vulnerability is a privacy issue where an app may be able to identify a user across reinstalls due to improved handling of identifiers in iOS 27, iPadOS 27, macOS Golden Gate 27, and visionOS 27.

Detection Guidance

This vulnerability is specific to Apple operating systems and relates to user tracking across reinstalls. Detection would require checking system logs or app behavior for unusual identifier persistence. No direct commands are provided in the context.

Impact Analysis

This vulnerability could allow apps to track users even after they reinstall the app or device, potentially compromising user privacy and enabling persistent monitoring without consent.

Compliance Impact

The vulnerability allows an app to identify a user across reinstalls, which could lead to unauthorized tracking or data exposure. This may violate privacy principles under GDPR and HIPAA by enabling persistent user identification without consent.

Mitigation Strategies

Update affected Apple devices to iOS 27, iPadOS 27, macOS Golden Gate 27, or visionOS 27 to address the issue. Avoid reinstalling apps from untrusted sources that may exploit this tracking method.

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