CVE-2021-0437

HIGH

Android - Double Free in DrmPlugin.cpp

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2021-0437. PoCs published by nanopathi.

AI-analyzed exploit summary This repository contains source code files from the Android Open Source Project (AOSP) related to the camera framework, specifically focusing on CVE-2021-0437. The code includes implementations of camera functionality but does not contain an explicit exploit or proof-of-concept. It appears to be a snapshot of vulnerable code for analysis purposes.

Description

In setPlayPolicy of DrmPlugin.cpp, there is a possible double free. This could lead to local escalation of privilege in a privileged process 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-176168330

Exploits (2)

gitlab WRITEUP
by nanopathi · poc
https://gitlab.com/nanopathi/frameworks_av_AOSP10_r33_CVE-2021-0437

This repository contains source code files from the Android Open Source Project (AOSP) related to the camera framework, specifically focusing on CVE-2021-0437. The code includes implementations of camera functionality but does not contain an explicit exploit or proof-of-concept. It appears to be a snapshot of vulnerable code for analysis purposes.

Classification
Writeup 90%
Attack Type
Other
Complexity
Moderate
Reliability
Theoretical
Target: Android Open Source Project (AOSP) Camera Framework
No auth needed
Prerequisites: Access to vulnerable Android device · Understanding of camera framework internals
devstral-2 · analyzed Feb 23, 2026 Full analysis →
nomisec WRITEUP
by nanopathi · poc
https://github.com/nanopathi/frameworks_av_AOSP10_r33_CVE-2021-0437

This repository contains source code files from the Android Open Source Project (AOSP) related to the camera framework, specifically focusing on CVE-2021-0437. The files include implementations of camera functionality but do not contain an explicit exploit or proof-of-concept code.

Classification
Writeup 90%
Attack Type
Other
Complexity
Moderate
Reliability
Theoretical
Target: Android Open Source Project (AOSP) Camera Framework
No auth needed
Prerequisites: Access to vulnerable Android device · Knowledge of camera framework internals
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/2021-04-01

Scores

CVSS v3 7.8
EPSS 0.0024
EPSS Percentile 15.1%
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-415
Status published
Products (4)
google/android 8.1
google/android 9.0
google/android 10.0
google/android 11.0
Published Apr 13, 2021
Tracked Since Feb 18, 2026