CVE-2021-47789

6.8 mediumEPSS 0.5%

Medium (6.8) in yenkee yms 3029 firmware. EPSS 0.5% chance of exploitation in the next 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.

Severity

CVSS 4.0

6.8 medium

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

CVSS 3.1

7.5 high

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-31)
CWEs: CWE-787, CWE-121
Published: 2026-01-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

yenkee:yms_3029_firmware

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/
https://www.exploit-db.com/exploits/50311

Check your stack JSON