{"cve":"CVE-2021-47620","nvd":{"published":"2024-06-20T11:15:54.653","modified":"2026-08-04T10:17:11.300","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: refactor malicious adv data check\n\nCheck for out-of-bound read was being performed at the end of while\nnum_reports loop, and would fill journal with false positives. Added\ncheck to beginning of loop processing so that it doesn't get checked\nafter ptr has been advanced.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","score":5.5},"cwes":["CWE-125"],"references":["https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082","https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e","https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e","https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c","https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:52:00.836172422+00:00"},"epss":{"cve":"CVE-2021-47620","score":0.00324,"percentile":0.25509,"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."]}