The issue was addressed by removing the relevant flags. This issue is fixed in watchOS 11.2, iOS 18.2 and iPadOS 18.2. A system binary could be used to fingerprint a user's Apple Account.
https://support.apple.com/en-us/121843
https://support.apple.com/en-us/121837
Source: Mitre, NVD
Published: 2025-01-27
Updated: 2025-02-04
Base Score: 9.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N
Severity: High
Base Score: 9.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Severity: Critical