This issue was addressed with improved checks. This issue is fixed in iOS 15.4 and iPadOS 15.4. A user may be able to bypass the Emergency SOS passcode prompt.
https://support.apple.com/en-us/HT213182
Source: Mitre, NVD
Published: 2022-03-18
Updated: 2022-03-24
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical