CVE-2023-21097

HIGH

Android 11-13 - Local Privilege Escalation via Intent toUriInner Confused Deputy

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2023-21097. PoCs published by uthrasri, Trinadh465.

AI-analyzed exploit summary This repository contains a proof-of-concept exploit for CVE-2023-21097, targeting Android's Autofill framework. The code includes test cases that demonstrate the vulnerability by manipulating focus events and autofill responses.

Description

In toUriInner of Intent.java, there is a possible way to launch an arbitrary activity due to a confused deputy. 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-261858325

Exploits (2)

nomisec WORKING POC
by uthrasri · poc
https://github.com/uthrasri/frameworks_base_AOSP10_r33_CVE-2023-21097

This repository contains a proof-of-concept exploit for CVE-2023-21097, targeting Android's Autofill framework. The code includes test cases that demonstrate the vulnerability by manipulating focus events and autofill responses.

Classification
Working Poc 90%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: Android Autofill Framework (AOSP10 r33)
No auth needed
Prerequisites: Android device with vulnerable Autofill framework
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC
by Trinadh465 · poc
https://github.com/Trinadh465/frameworks_base_AOSP10_r33_CVE-2023-21097

This repository contains a proof-of-concept exploit for CVE-2023-21097, targeting Android's Autofill framework. The PoC includes test cases that demonstrate the vulnerability by manipulating focus events and autofill responses.

Classification
Working Poc 90%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: Android Autofill Framework (AOSP10_r33)
No auth needed
Prerequisites: Android device with vulnerable Autofill framework
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0020
EPSS Percentile 9.8%
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-610
Status published
Products (4)
google/android 11.0
google/android 12.0
google/android 12.1
google/android 13.0
Published Apr 19, 2023
Tracked Since Feb 18, 2026