Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-47786

Severity CVSS v4.0:
MEDIUM
Type:
CWE-787 Out-of-bounds Write
Publication date:
16/01/2026
Last modified:
09/02/2026

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.

Impact

Vector 4.0
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 v4.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: 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

Attack Vector (AV): Local
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): Low
User Interaction (UI): None
Confidentiality (VC): None
Integrity (VI): None
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0
6.80
Severity 4.0
MEDIUM
Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:redragon:m725-lit_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:redragon:m725-lit:-:*:*:*:*:*:*:*
cpe:2.3:o:redragon:m617-lit_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:redragon:m617-lit:-:*:*:*:*:*:*:*
cpe:2.3:o:redragon:m910-ks_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:redragon:m910-ks:-:*:*:*:*:*:*:*
cpe:2.3:o:redragon:m801p-rgb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:redragon:m801p-rgb:-:*:*:*:*:*:*:*
cpe:2.3:o:redragon:m602-ks_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:redragon:m602-ks:-:*:*:*:*:*:*:*
cpe:2.3:o:redragon:m914w-rgb_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:redragon:m914w-rgb:-:*:*:*:*:*:*:*
cpe:2.3:o:redragon:m816-pro_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:redragon:m816-pro:-:*:*:*:*:*:*:*
cpe:2.3:o:redragon:m602a-rgb_firmware:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools