CVE-2021-39696

HIGH

Android 10-12 - Local Privilege Escalation via Task.java Confused Deputy

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-39696. PoCs published by nidhihcl.

AI-analyzed exploit summary This repository contains test cases and performance tests related to Android's autofill framework, specifically targeting CVE-2021-39696. The code includes test scenarios for autofill behavior but does not contain a direct exploit or malicious payload.

Description

In Task.java, there is a possible escalation of privilege due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12Android ID: A-185810717

Exploits (1)

nomisec WRITEUP
by nidhihcl · poc
https://github.com/nidhihcl/frameworks_base_AOSP_10_r33_CVE-2021-39696

This repository contains test cases and performance tests related to Android's autofill framework, specifically targeting CVE-2021-39696. The code includes test scenarios for autofill behavior but does not contain a direct exploit or malicious payload.

Classification
Writeup 90%
Attack Type
Other
Complexity
Moderate
Reliability
Theoretical
Target: Android Autofill Framework (AOSP 10 r33)
No auth needed
Prerequisites: Android device with autofill service enabled
devstral-2 · analyzed Feb 19, 2026 Full analysis →

References (1)

Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://source.android.com/security/bulletin/2022-08-01

Scores

CVSS v3 7.8
EPSS 0.0022
EPSS Percentile 12.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

Status published
Products (3)
google/android 10.0
google/android 11.0
google/android 12.0
Published Aug 10, 2022
Tracked Since Feb 18, 2026