CVE-2021-0394

MEDIUM

Android - Out-of-bounds Read in android_os_Parcel_readString8

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-0394. PoCs published by Trinadh465.

AI-analyzed exploit summary This repository contains a functional exploit PoC for CVE-2021-0394, targeting a vulnerability in Android's ART (Android Runtime) related to type index handling in DexCache. The exploit leverages a collision in the low 10 bits of type indexes to trigger a memory corruption issue.

Description

In android_os_Parcel_readString8 of android_os_Parcel.cpp, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-172655291

Exploits (1)

nomisec WORKING POC
by Trinadh465 · poc
https://github.com/Trinadh465/platform_art_CVE-2021-0394

This repository contains a functional exploit PoC for CVE-2021-0394, targeting a vulnerability in Android's ART (Android Runtime) related to type index handling in DexCache. The exploit leverages a collision in the low 10 bits of type indexes to trigger a memory corruption issue.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Android Runtime (ART) on Android devices
No auth needed
Prerequisites: Access to a vulnerable Android device · Ability to execute arbitrary Java code on the target
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 5.5
EPSS 0.0026
EPSS Percentile 17.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-125
Status published
Products (4)
google/android 8.1
google/android 9.0
google/android 10.0
google/android 11.0
Published Mar 10, 2021
Tracked Since Feb 18, 2026