CVE-2021-1931

MEDIUM

Qualcomm AQT1000 Firmware - Buffer Overflow via Fast Boot Command Processing

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-1931. PoCs published by FakeShell.

AI-analyzed exploit summary This repository contains a functional exploit PoC for CVE-2021-1931, targeting BlackBerry Key2 devices via USB communication. The code interacts with the device's fastboot mode to detect firmware versions and apply patches, demonstrating a potential privilege escalation or firmware manipulation vulnerability.

Description

Possible buffer overflow due to improper validation of buffer length while processing fast boot commands in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Exploits (1)

nomisec WORKING POC 7 stars
by FakeShell · poc
https://github.com/FakeShell/CVE-2021-1931-BBRY-KEY2

This repository contains a functional exploit PoC for CVE-2021-1931, targeting BlackBerry Key2 devices via USB communication. The code interacts with the device's fastboot mode to detect firmware versions and apply patches, demonstrating a potential privilege escalation or firmware manipulation vulnerability.

Classification
Working Poc 95%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: BlackBerry Key2 firmware (versions 575, 160, 448, etc.)
No auth needed
Prerequisites: Physical access to the device · Device in fastboot mode
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 6.7
EPSS 0.0019
EPSS Percentile 9.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-120
Status published
Products (50)
qualcomm/aqt1000_firmware
qualcomm/ar8031_firmware
qualcomm/ar8035_firmware
qualcomm/csra6620_firmware
qualcomm/csra6640_firmware
qualcomm/csrb31024_firmware
qualcomm/fsm10055_firmware
qualcomm/fsm10056_firmware
qualcomm/qca6174a_firmware
qualcomm/qca6310_firmware
... and 40 more
Published Jul 13, 2021
Tracked Since Feb 18, 2026