CVE-2023-21086

HIGH

Android - Local Privilege Escalation via NFC Permissions Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-21086. PoCs published by Trinadh465.

AI-analyzed exploit summary This repository contains a proof-of-concept exploit for CVE-2023-21086, targeting Android Settings components. The code includes modified Android Settings source files, likely demonstrating the vulnerability in preference handling or activity picking.

Description

In isToggleable of SecureNfcEnabler.java and SecureNfcPreferenceController.java, there is a possible way to enable NFC from a secondary account due to a permissions bypass. This could lead to local escalation of privilege from the Guest account 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-238298970

Exploits (1)

nomisec WORKING POC
by Trinadh465 · poc
https://github.com/Trinadh465/packages_apps_Settings_CVE-2023-21086

This repository contains a proof-of-concept exploit for CVE-2023-21086, targeting Android Settings components. The code includes modified Android Settings source files, likely demonstrating the vulnerability in preference handling or activity picking.

Classification
Working Poc 90%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Android Settings (specific version not specified)
No auth needed
Prerequisites: Access to vulnerable Android device · Ability to install or interact with modified Settings APK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0018
EPSS Percentile 7.5%
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

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