Buffer overflow in Yenkee Hornet Gaming Mouse
CVE-2021-47789
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (38.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000
Affected products
- Yenkee Hornet Gaming Mouse — versions all version
- Yenkee Yms 3029
- Yenkee Yms 3029 Firmware
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/50311 (Exploit, exploit)
- www.yenkee.eu/ (Product, product)
- github.com/Quadron-Research-Lab/Kernel_Driver_bugs/tree/main/GM312Fltr (Exploit, technical-description, exploit)
- www.vulncheck.com/advisories/yenkee-hornet-gaming-mouse-gmfltrsys-denial-of-ser… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2021-47789?
- CVE-2021-47789 is a high-severity vulnerability in Yenkee Hornet Gaming Mouse, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2026-01-16.
- How severe is CVE-2021-47789?
- High severity. CVSS v3 base score is 7.5 out of 10.