CVE-2021-47786 | THREATINT

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.

PUBLISHED Reserved 2026-01-14 | Published 2026-01-15 | Updated 2026-01-16 | Assigner VulnCheck

MEDIUM: 6.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

Out-of-bounds Write

Product status

all version

affected

Credits

Quadron Research Lab finder

References

www.exploit-db.com/exploits/50322 exploit

www.exploit-db.com/exploits/50322 (ExploitDB-50322) exploit

www.redragonzone.com/ (Vendor Download Page) product

github.com/...ab/Kernel_Driver_bugs/tree/main/REDRAGON_MOUSE (Vulnerability Research Repository) technical-description exploit

www.vulncheck.com/...-redragonmousesys-denial-of-service-poc (VulnCheck Advisory: Redragon Gaming Mouse - 'REDRAGON_MOUSE.sys' Denial of Service (PoC)) third-party-advisory

cve.org (CVE-2021-47786)

nvd.nist.gov (CVE-2021-47786)

Download JSON