CVE-2021-0688

HIGH

Android - Local Privilege Escalation via Lock Screen Race Condition

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-0688. PoCs published by Satheesh575555.

AI-analyzed exploit summary This repository contains test cases and performance tests related to Android's autofill framework, specifically targeting CVE-2021-0688. The code includes test scenarios for autofill functionality but does not contain a direct exploit or malicious payload.

Description

In lockNow of PhoneWindowManager.java, there is a possible lock screen bypass due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-161149543

Exploits (1)

nomisec WRITEUP
by Satheesh575555 · poc
https://github.com/Satheesh575555/frameworks_base_AOSP10_r33_CVE-2021-0688

This repository contains test cases and performance tests related to Android's autofill framework, specifically targeting CVE-2021-0688. The code includes test scenarios for autofill functionality but does not contain a direct exploit or malicious payload.

Classification
Writeup 90%
Attack Type
Other
Complexity
Moderate
Reliability
Theoretical
Target: Android Autofill Framework (AOSP 10 r33)
No auth needed
Prerequisites: Access to Android device with vulnerable autofill framework
mistral-large-3 · analyzed Feb 18, 2026 Full analysis →

References (1)

Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://source.android.com/security/bulletin/2021-09-01

Scores

CVSS v3 7.0
EPSS 0.0015
EPSS Percentile 5.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-362
Status published
Products (4)
google/android 8.1
google/android 9.0
google/android 10.0
google/android 11.0
Published Oct 06, 2021
Tracked Since Feb 18, 2026