CVE-2021-47786
Redragon Gaming Mouse - 'REDRAGON_MOUSE.sys' Denial of Service (PoC)
Description
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 REDRAGON_MOUSE device to crash the kernel driver.
INFO
Published Date :
Jan. 16, 2026, 12:16 a.m.
Last Modified :
Feb. 9, 2026, 2:27 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2021-47786
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update the Redragon Gaming Mouse driver to the latest version.
- Apply security patches for the kernel driver.
- Avoid sending malformed IOCTL requests.
- Monitor device driver integrity.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47786.
| URL | Resource |
|---|---|
| https://github.com/Quadron-Research-Lab/Kernel_Driver_bugs/tree/main/REDRAGON_MOUSE | Exploit |
| https://www.exploit-db.com/exploits/50322 | ExploitThird Party Advisory |
| https://www.redragonzone.com/ | Product |
| https://www.vulncheck.com/advisories/redragon-gaming-mouse-redragonmousesys-denial-of-service-poc | Third Party Advisory |
| https://www.exploit-db.com/exploits/50322 | ExploitThird Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47786 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47786
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47786 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47786 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 09, 2026
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:o:redragon:m725-lit_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m725-lit:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:m617-lit_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m617-lit:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:m910-ks_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m910-ks:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:m801p-rgb_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m801p-rgb:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:m602-ks_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m602-ks:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:m914w-rgb_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m914w-rgb:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:m816-pro_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m816-pro:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:m602a-rgb_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m602a-rgb:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:m721_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m721:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:m602aw-rgb_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m602aw-rgb:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:m915rgb-wl_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m915rgb-wl:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:m712-rgb_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m712-rgb:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:m910-k_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:m910-k:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:redragon:bm-4091_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:redragon:bm-4091:-:*:*:*:*:*:*:* Added Reference Type VulnCheck: https://github.com/Quadron-Research-Lab/Kernel_Driver_bugs/tree/main/REDRAGON_MOUSE Types: Exploit Added Reference Type VulnCheck: https://www.exploit-db.com/exploits/50322 Types: Exploit, Third Party Advisory Added Reference Type VulnCheck: https://www.redragonzone.com/ Types: Product Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/redragon-gaming-mouse-redragonmousesys-denial-of-service-poc Types: Third Party Advisory Added Reference Type CISA-ADP: https://www.exploit-db.com/exploits/50322 Types: Exploit, Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jan. 16, 2026
Action Type Old Value New Value Added Reference https://www.exploit-db.com/exploits/50322 -
New CVE Received by [email protected]
Jan. 16, 2026
Action Type Old Value New Value Added Description 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 REDRAGON_MOUSE device to crash the kernel driver. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-787 Added Reference https://github.com/Quadron-Research-Lab/Kernel_Driver_bugs/tree/main/REDRAGON_MOUSE Added Reference https://www.exploit-db.com/exploits/50322 Added Reference https://www.redragonzone.com/ Added Reference https://www.vulncheck.com/advisories/redragon-gaming-mouse-redragonmousesys-denial-of-service-poc