{"cve":"CVE-2021-47404","nvd":{"published":"2024-05-21T15:15:25.920","modified":"2026-06-17T04:17:23.723","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: betop: fix slab-out-of-bounds Write in betop_probe\n\nSyzbot reported slab-out-of-bounds Write bug in hid-betopff driver.\nThe problem is the driver assumes the device must have an input report but\nsome malicious devices violate this assumption.\n\nSo this patch checks hid_device's input is non empty before it's been used.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-787"],"references":["https://git.kernel.org/stable/c/1c83c38dec83d57bc18d0c01d82c413d3b34ccb9","https://git.kernel.org/stable/c/1e4ce418b1cb1a810256b5fb3fd33d22d1325993","https://git.kernel.org/stable/c/6fc4476dda58f6c00097c7ddec3b772513f57525","https://git.kernel.org/stable/c/708107b80aa616976d1c5fa60ac0c1390749db5e","https://git.kernel.org/stable/c/a4faa7153b87fbcfe4be15f4278676f79ca6e019"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47404","score":0.00261,"percentile":0.17887,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}