{"cve":"CVE-2021-47474","nvd":{"published":"2024-05-22T09:15:09.287","modified":"2026-06-17T04:17:33.320","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: vmk80xx: fix bulk-buffer overflow\n\nThe driver is using endpoint-sized buffers but must not assume that the\ntx and rx buffers are of equal size or a malicious device could overflow\nthe slab-allocated receive buffer when doing bulk transfers.","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/063f576c43d589a4c153554b681d32b3f8317c7b","https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772","https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993","https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2","https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871d"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47474","score":0.00259,"percentile":0.17596,"date":"2026-10-31"},"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."]}