Buffer overflow in Redragon Bm-4091
CVE-2021-47786
Redragon Gaming Mouse driver contains a kernel-level vulnerability that allows attackers to trigger a denial of service by sending malformed IOCTL requests. Attackers can send a crafted 2000-byte buffer with specific byte patterns to the R…
Vulnerability class: Buffer Overflow
EPSS: 0.004 (35.0th percentile) — read the EPSS interpretation.
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.
Affected products
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Exploit, Third Party Advisory, exploit)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Exploit, technical-description, exploit)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2021-47786?
- CVE-2021-47786 is a high-severity vulnerability in Redragon Bm-4091, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2026-01-16.
- How severe is CVE-2021-47786?
- High severity. CVSS v3 base score is 7.5 out of 10.