{"id":"CVE-2021-47786","aliases":["EUVD-2026-3011","GHSA-hf7c-3q9p-mcqw"],"status":"published","title":"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.","severity":{"version":"4.0","score":6.8,"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00486,"percentile":0.4215,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2026-01-15T23:25:39Z","modified":"2026-06-17T04:18:29Z","products":[{"vendor":"redragon","product":"bm-4091_firmware"},{"vendor":"redragon","product":"m602-ks_firmware"},{"vendor":"redragon","product":"m602a-rgb_firmware"},{"vendor":"redragon","product":"m602aw-rgb_firmware"},{"vendor":"redragon","product":"m617-lit_firmware"},{"vendor":"redragon","product":"m712-rgb_firmware"},{"vendor":"redragon","product":"m721_firmware"},{"vendor":"redragon","product":"m725-lit_firmware"},{"vendor":"redragon","product":"m801p-rgb_firmware"},{"vendor":"redragon","product":"m816-pro_firmware"},{"vendor":"redragon","product":"m910-k_firmware"},{"vendor":"redragon","product":"m910-ks_firmware"},{"vendor":"redragon","product":"m914w-rgb_firmware"},{"vendor":"redragon","product":"m915rgb-wl_firmware"},{"vendor":"redragon","product":"redragon gaming mouse"}],"references":[{"url":"https://www.exploit-db.com/exploits/50322","tags":["exploit","Exploit","Third Party Advisory"]},{"url":"https://www.redragonzone.com/","tags":["product","Product"]},{"url":"https://github.com/Quadron-Research-Lab/Kernel_Driver_bugs/tree/main/REDRAGON_MOUSE","tags":["technical-description","exploit","Exploit"]},{"url":"https://www.vulncheck.com/advisories/redragon-gaming-mouse-redragonmousesys-denial-of-service-poc","tags":["third-party-advisory","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-47786"},{"url":"https://www.redragonzone.com"},{"url":"https://github.com/advisories/GHSA-hf7c-3q9p-mcqw"}],"sources":{"cve":[{"id":"CVE-2021-47786","title":"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.","status":"published","published":"2026-01-15T23:25:39.342Z","modified":"2026-04-07T14:06:10.152Z","cvss":[{"version":"4.0","score":6.8,"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","level":"medium","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:32:56.308189Z"}],"euvd":[{"id":"EUVD-2026-3011","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.","status":"published","published":"2026-01-15T23:25:39Z","modified":"2026-04-07T14:06:10Z","cvss":[{"version":"4.0","score":6.8,"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","level":"medium"}],"updated_at":"2026-11-02T19:25:13.718727Z"}],"ghsa":[{"id":"GHSA-hf7c-3q9p-mcqw","title":"Redragon Gaming Mouse driver contains a kernel-level vulnerability that allows attackers to...","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.","status":"published","published":"2026-01-16T00:30:55Z","modified":"2026-01-16T00:31:02Z","cvss":[{"version":"4.0","score":6.8,"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/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","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:05:38.149378Z"}],"nvd":[{"id":"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.","status":"published","published":"2026-01-16T00:16:21.887Z","modified":"2026-06-17T04:18:29.37Z","cvss":[{"version":"4.0","score":6.8,"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/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","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:09.005706Z"}]}}