CVE-2021-47786

HIGH

Redragon Gaming Mouse - Denial of Service via Malformed IOCTL Request

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47786. PoCs published by Quadron Research Lab.

AI-analyzed exploit summary This exploit demonstrates a Denial of Service (DoS) vulnerability in the Redragon Gaming Mouse driver by sending a malformed buffer via DeviceIoControl to the REDRAGON_MOUSE.sys driver. The PoC triggers a crash by overwriting memory with a large buffer of repeated bytes.

Description

Redragon Gaming Mouse driver contains a kernel-level vulnerability that allows attackers to trigger a denial of service by sending malformed IOCTL requests. Attackers can send a crafted 2000-byte buffer with specific byte patterns to the REDRAGON_MOUSE device to crash the kernel driver.

Exploits (1)

exploitdb WORKING POC
by Quadron Research Lab · pythondoswindows
https://www.exploit-db.com/exploits/50322

This exploit demonstrates a Denial of Service (DoS) vulnerability in the Redragon Gaming Mouse driver by sending a malformed buffer via DeviceIoControl to the REDRAGON_MOUSE.sys driver. The PoC triggers a crash by overwriting memory with a large buffer of repeated bytes.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Redragon Gaming Mouse Driver (REDRAGON_MOUSE.sys)
No auth needed
Prerequisites: Access to a system with the vulnerable Redragon Gaming Mouse driver installed
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4

Scores

CVSS v3 7.5
EPSS 0.0044
EPSS Percentile 34.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-787
Status published
Products (15)
redragon/bm-4091_firmware
redragon/m602-ks_firmware
redragon/m602a-rgb_firmware
redragon/m602aw-rgb_firmware
redragon/m617-lit_firmware
redragon/m712-rgb_firmware
redragon/m721_firmware
redragon/m725-lit_firmware
redragon/m801p-rgb_firmware
redragon/m816-pro_firmware
... and 5 more
Published Jan 16, 2026
Tracked Since Feb 18, 2026