CVE-2021-47789

HIGH 7.5

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

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-121
Vendor	yenkee
Product	yenkee hornet gaming mouse
Published	Jan 15, 2026
Last Updated	Apr 7, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

Yenkee / Yenkee Hornet Gaming Mouse

all version

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Quadron Research Lab