High 7.5Published Jan 15, 2026

CVE-2021-47789Yenkee Hornet Gaming Mouse - 'GM312Fltr.sys' Denial of Service (PoC)

Updated under an hour ago (Oct 28, 2026, 8:50 AM ET)

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It affects Yenkee Hornet Gaming Mouse and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Yenkee Hornet Gaming Mouse

Exploited in the last 30 days

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: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-121
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Apr 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Yenkee Yenkee Hornet Gaming Mouse yenkee:hornet_gaming_mouse (from the name)	all version	CNA record
yenkee yms_3029_firmware yenkee:yms_3029_firmware	all versions	NVD

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.