CVE-2026-64733

Application Fingerprinting via Unprotected Identifiers in Apple Operating Systems

Published Jul 27, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
This issue was addressed with improved data protection. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to fingerprint the user.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Application Fingerprinting via Unprotected Identifiers in Apple Operating Systems
Type Values Removed Values Added
Title App Fingerprinting Vulnerability in Apple Platforms
Type Values Removed Values Added
Title App Fingerprinting Vulnerability in Apple Platforms
Weaknesses CWE-200
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Apple tvos
Apple visionos
Apple watchos
Vendors & Products Apple
Apple ios And Ipados
Apple macos
Apple tvos
Apple visionos
Apple watchos
Type Values Removed Values Added
Description This issue was addressed with improved data protection. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to fingerprint the user.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apple
Published
Updated
Jul 28, 2026, 2:27 PM
Reserved
Jul 20, 2026, 6:09 PM
Status
Analyzed
Published
Jul 27, 2026, 9:17 PM
Modified
Jul 28, 2026, 6:47 PM