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Apple macOS Tahoe 26 Downgrade Vulnerability in AppleMobileFileIntegrity Allows Access to Protected User Data

Vulnerability

A downgrade vulnerability in the AppleMobileFileIntegrity component of macOS Tahoe 26 was addressed by implementing additional code-signing restrictions. This issue could have allowed an application to access protected user data. The vulnerability affects several different versions and ranges of macOS, specifically on Intel-based Macs.

Impact

Exploitation of this vulnerability could lead to unauthorized access to sensitive user data.

Added: Sep 16, 2025, 12:08 AM
Updated: Sep 16, 2025, 12:08 AM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
2.5
exploitability
4.4
remediation
7.7
relevance
0.5
threat
0.0
urgency
2.9
incentive
0.8

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.