CVE-2019-16241

MEDIUM

TCL Alcatel Cingular Flip 2 B9HUAH1 - Auth Bypass

Title source: llm

Description

On TCL Alcatel Cingular Flip 2 B9HUAH1 devices, PIN authentication can be bypassed by creating a special file within the /data/local/tmp/ directory. The System application that implements the lock screen checks for the existence of a specific file and disables PIN authentication if it exists. This file would typically be created via Android Debug Bridge (adb) over USB.

References (2)

[Third Party Advisory] https://www.nccgroup.trust/uk/our-research/?research=Technical+advisories

[Exploit, Third Party Advisory] https://www.nccgroup.trust/us/our-research/technical-advisory-multiple-vulnerabilities-in-alcatel-flip-2/#C

Scores

CVSS v3 6.8

EPSS 0.0006

EPSS Percentile 18.3%

Attack Vector PHYSICAL

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-668

Status published

Affected Products (1)

alcatelmobile/cingular_flip_2_firmware

Timeline

Published Nov 26, 2019

Tracked Since Feb 18, 2026