{"cve":"CVE-2021-38206","nvd":{"published":"2021-08-08T20:15:07.320","modified":"2026-10-08T21:17:39.517","status":"Modified","description":"The mac80211 subsystem in the Linux kernel before 5.12.13, when a device supporting only 5 GHz is used, allows attackers to cause a denial of service (NULL pointer dereference in the radiotap parser) by injecting a frame with 802.11a rates.","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":["CWE-476"],"references":["https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13","https://github.com/torvalds/linux/commit/bddc0c411a45d3718ac535a070f349be8eca8d48","https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13","https://github.com/torvalds/linux/commit/bddc0c411a45d3718ac535a070f349be8eca8d48"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-38206","score":0.00269,"percentile":0.18836,"date":"2026-10-25"},"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."]}