CVE-2021-0327

HIGH

Android - Local Privilege Escalation via Binder Identity Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-0327. PoCs published by nanopathi.

AI-analyzed exploit summary This repository contains functional exploit code for CVE-2021-0327, targeting Android's autofill framework. The provided test cases demonstrate the vulnerability by manipulating autofill service interactions, potentially leading to privilege escalation or unauthorized data access.

Description

In getContentProviderImpl of ActivityManagerService.java, there is a possible permission bypass due to non-restored binder identities. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-9 Android-10 Android-11 Android-8.1Android ID: A-172935267

Exploits (1)

nomisec WORKING POC
by nanopathi · poc
https://github.com/nanopathi/framework_base_AOSP10_r33_CVE-2021-0327

This repository contains functional exploit code for CVE-2021-0327, targeting Android's autofill framework. The provided test cases demonstrate the vulnerability by manipulating autofill service interactions, potentially leading to privilege escalation or unauthorized data access.

Classification
Working Poc 90%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Android Autofill Framework (AOSP 10)
No auth needed
Prerequisites: Access to an Android device with vulnerable autofill framework
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (1)

Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://source.android.com/security/bulletin/2021-02-01

Scores

CVSS v3 7.8
EPSS 0.0026
EPSS Percentile 17.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-269
Status published
Products (4)
google/android 8.1
google/android 9.0
google/android 10.0
google/android 11.0
Published Feb 10, 2021
Tracked Since Feb 18, 2026