High severity7.5NVD Advisory· Published Jan 16, 2026· Updated Jun 17, 2026
CVE-2021-47786
CVE-2021-47786
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
17- cpe:2.3:o:redragon:bm-4091_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m602-ks_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m602a-rgb_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m602aw-rgb_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m617-lit_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m712-rgb_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m721_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m725-lit_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m801p-rgb_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m816-pro_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m910-k_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m910-ks_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m914w-rgb_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:redragon:m915rgb-wl_firmware:-:*:*:*:*:*:*:*
(expand)+ 1 more
- (no CPE)
- (no CPE)range: all version
Patches
Vulnerability mechanics
References
4- github.com/Quadron-Research-Lab/Kernel_Driver_bugs/tree/main/REDRAGON_MOUSEnvdExploit
- www.exploit-db.com/exploits/50322nvdExploitThird Party Advisory
- www.vulncheck.com/advisories/redragon-gaming-mouse-redragonmousesys-denial-of-service-pocnvdThird Party Advisory
- www.redragonzone.comnvdProduct
News mentions
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