CVE-2021-47789

Yenkee Hornet Gaming Mouse - 'GM312Fltr.sys' Denial of Service (PoC)

CVSS 6.8 MEDIUMEPSS 0.4%CWE-121

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.8EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

15 Jan 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Yenkee Hornet Gaming Mouse driver GM312Fltr.sys contains a buffer overrun vulnerability that allows attackers to crash the system by sending oversized input. Attackers can exploit the driver by sending a 2000-byte buffer through DeviceIoControl to trigger a kernel-level system crash.

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

Affected products

Yenkee · Yenkee Hornet Gaming Mouse

References

https://github.com/Quadron-Research-Lab/Kernel_Driver_bugs/tree/main/GM312Fltr https://www.exploit-db.com/exploits/50311 https://www.vulncheck.com/advisories/yenkee-hornet-gaming-mouse-gmfltrsys-denial-of-service-poc https://www.yenkee.eu/