CVE-2021-47786 MEDIUM

CVE-2021-47786: Redragon Gaming Mouse - 'REDRAGON_MOUSE.sys' Denial of Service (PoC)

Vendor Redragon
Product Redragon Gaming Mouse
Weakness CWE-787
Published January 15, 2026
Last update April 7, 2026
View on NVD All CVEs

CVSS base score

6.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 15, 2026 CVE published
April 7, 2026 Record updated