CVE-2021-0435

HIGH

Android - Remote Information Disclosure via Uninitialized Data in avrc_proc_vendor_command

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2021-0435. PoCs published by nanopathi, ShaikUsaf.

AI-analyzed exploit summary This repository contains the Fluoride Bluetooth stack source code, which is the affected component for CVE-2021-0435. It includes build instructions, documentation, and source files but does not contain an explicit exploit or proof-of-concept code for the vulnerability.

Description

In avrc_proc_vendor_command of avrc_api.cc, there is a possible leak of heap data due to uninitialized data. This could lead to remote 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-174150451

Exploits (3)

gitlab WRITEUP
by nanopathi · poc
https://gitlab.com/nanopathi/system_bt_AOSP10_r33_CVE-2021-0435

This repository contains the Fluoride Bluetooth stack source code, which is the affected component for CVE-2021-0435. It includes build instructions, documentation, and source files but does not contain an explicit exploit or proof-of-concept code for the vulnerability.

Classification
Writeup 90%
Attack Type
Other
Complexity
Moderate
Reliability
Theoretical
Target: Fluoride Bluetooth stack (AOSP)
No auth needed
Prerequisites: Access to the Bluetooth stack source code · Build environment for AOSP or Linux
devstral-2 · analyzed Feb 23, 2026 Full analysis →
nomisec WRITEUP
by ShaikUsaf · poc
https://github.com/ShaikUsaf/system_bt_AOSP10_r33_CVE-2021-0435

This repository contains the Fluoride Bluetooth stack source code, which is the component affected by CVE-2021-0435. It includes build instructions, documentation, and source files but does not contain an explicit exploit or proof-of-concept code for the vulnerability.

Classification
Writeup 90%
Attack Type
Other
Complexity
Complex
Reliability
Theoretical
Target: Fluoride Bluetooth stack (AOSP)
No auth needed
Prerequisites: Access to the Bluetooth stack source code · Knowledge of Bluetooth stack vulnerabilities
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WRITEUP
by nanopathi · poc
https://github.com/nanopathi/system_bt_AOSP10_r33_CVE-2021-0435

This repository contains the Fluoride Bluetooth stack source code, which is the affected software for CVE-2021-0435. It includes build instructions, documentation, and source files but does not contain an exploit PoC or detailed vulnerability analysis.

Classification
Writeup 90%
Attack Type
Other
Complexity
Moderate
Reliability
Theoretical
Target: Fluoride Bluetooth stack (AOSP10 r33)
No auth needed
Prerequisites: Access to the Bluetooth stack on a vulnerable Android device
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 7.5
EPSS 0.0171
EPSS Percentile 74.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-665
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