CVE-2023-21272

HIGH

Android - Local Privilege Escalation via URI Permission Grant

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2023-21272. PoCs published by pazhanivel07, Trinadh465.

AI-analyzed exploit summary This repository contains a proof-of-concept exploit for CVE-2023-21272, targeting Android's Autofill framework. The test cases demonstrate how autofill services can be manipulated to trigger unintended behavior, potentially leading to information disclosure or denial of service.

Description

In readFrom of Uri.java, there is a possible bad URI permission grant due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Exploits (2)

nomisec WORKING POC
by pazhanivel07 · poc
https://github.com/pazhanivel07/platform_frameworks_base_AOSP_10_r33_CVE-2023-21272

This repository contains a proof-of-concept exploit for CVE-2023-21272, targeting Android's Autofill framework. The test cases demonstrate how autofill services can be manipulated to trigger unintended behavior, potentially leading to information disclosure or denial of service.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Android Autofill Framework (AOSP 10 r33)
No auth needed
Prerequisites: Access to an Android device with Autofill enabled · Ability to install a malicious Autofill service
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC
by Trinadh465 · poc
https://github.com/Trinadh465/frameworks_base_AOSP-4.2.2_r1_CVE-2023-21272

This repository contains a proof-of-concept exploit for CVE-2023-21272, targeting Android's ActivityManager service. The exploit leverages a vulnerability in the `Am.java` file to potentially achieve privilege escalation or unauthorized command execution.

Classification
Working Poc 90%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Android Open Source Project (AOSP) 4.2.2_r1
No auth needed
Prerequisites: Access to the target Android device · Ability to execute commands via adb or similar
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Scores

CVSS v3 7.8
EPSS 0.0017
EPSS Percentile 6.4%
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-20 CWE-269
Status published
Products (3)
google/android 11.0
google/android 12.0
google/android 12.1
Published Aug 14, 2023
Tracked Since Feb 18, 2026