CVE-2023-21109

HIGH

Android 11-13 - Local Privilege Escalation via AccessibilityService Logic Error

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-21109. PoCs published by Trinadh465.

AI-analyzed exploit summary This repository contains a proof-of-concept exploit for CVE-2023-21109, targeting Android's autofill framework. The exploit demonstrates performance test cases that manipulate autofill behavior, potentially leading to unauthorized data access or manipulation.

Description

In multiple places of AccessibilityService, there is a possible way to hide the app from the user due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-261589597

Exploits (1)

nomisec WORKING POC
by Trinadh465 · poc
https://github.com/Trinadh465/frameworks_base_AOSP10_r33_CVE-2023-21109

This repository contains a proof-of-concept exploit for CVE-2023-21109, targeting Android's autofill framework. The exploit demonstrates performance test cases that manipulate autofill behavior, potentially leading to unauthorized data access or manipulation.

Classification
Working Poc 90%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Android Autofill Framework (AOSP 10 r33)
No auth needed
Prerequisites: Access to an Android device with the vulnerable autofill framework
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0013
EPSS Percentile 2.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-326
Status published
Products (4)
google/android 11.0
google/android 12.0
google/android 12.1
google/android 13.0
Published May 15, 2023
Tracked Since Feb 18, 2026