{"cve":"CVE-2021-47611","nvd":{"published":"2024-06-19T15:15:55.650","modified":"2026-08-04T10:17:10.733","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmac80211: validate extended element ID is present\n\nBefore attempting to parse an extended element, verify that\nthe extended element ID is present.","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:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/03029bb044ccee60adbc93e70713f3ae58abc3a1","https://git.kernel.org/stable/c/768c0b19b50665e337c96858aa2b7928d6dcf756","https://git.kernel.org/stable/c/7fd214fc7f2ee3a89f91e717e3cfad55f5a27045","https://git.kernel.org/stable/c/a19cf6844b509d44ecbd536f33d314d91ecdd2b5","https://git.kernel.org/stable/c/c62b16f98688ae7bc0ab23a6490481f4ce9b3a49"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:52:00.836172422+00:00"},"epss":{"cve":"CVE-2021-47611","score":0.00338,"percentile":0.27266,"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."]}