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.

INFO

Published Date :

2026-01-15T23:25:39.342Z

Last Modified :

2026-04-07T14:06:10.152Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2021-47786 vulnerability.

Vendors Products
Redragon
  • Bm-4091
  • Bm-4091 Firmware
  • Gaming Mouse
  • M602-ks
  • M602-ks Firmware
  • M602a-rgb
  • M602a-rgb Firmware
  • M602aw-rgb
  • M602aw-rgb Firmware
  • M617-lit
  • M617-lit Firmware
  • M712-rgb
  • M712-rgb Firmware
  • M721
  • M721 Firmware
  • M725-lit
  • M725-lit Firmware
  • M801p-rgb
  • M801p-rgb Firmware
  • M816-pro
  • M816-pro Firmware
  • M910-k
  • M910-k Firmware
  • M910-ks
  • M910-ks Firmware
  • M914w-rgb
  • M914w-rgb Firmware
  • M915rgb-wl
  • M915rgb-wl Firmware
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2021-47786.

URL Resource
https://github.com/Quadron-Research-Lab/Kernel_Driver_bugs/tree/main/REDRAGON_MOUSE cve-icon cve-icon
https://www.exploit-db.com/exploits/50322 cve-icon cve-icon cve-icon
https://www.redragonzone.com/ cve-icon cve-icon
https://www.vulncheck.com/advisories/redragon-gaming-mouse-redragonmousesys-denial-of-service-poc cve-icon cve-icon
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CVSS Vulnerability Scoring System

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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
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User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact