{"cve":"CVE-2020-26139","nvd":{"published":"2021-05-11T20:15:08.647","modified":"2026-06-17T03:07:39.783","status":"Modified","description":"An issue was discovered in the kernel in NetBSD 7.1. An Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier to exploit other vulnerabilities in connected clients.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.3},"cwes":["CWE-287"],"references":["http://www.openwall.com/lists/oss-security/2021/05/11/12","https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf","https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md","https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html","https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"],"products":["arista:c-100_firmware","arista:c-110_firmware","arista:c-120_firmware","arista:c-130_firmware","arista:c-200_firmware","arista:c-230_firmware","arista:c-235_firmware","arista:c-250_firmware","arista:c-260_firmware","arista:c-65_firmware","arista:c-75_firmware","arista:o-105_firmware","arista:o-90_firmware","arista:w-118_firmware","arista:w-68_firmware","cisco:1100-4p_firmware","cisco:1100-8p_firmware","cisco:1100_firmware","cisco:1101-4p_firmware","cisco:1109-2p_firmware","cisco:1109-4p_firmware","cisco:aironet_1532_firmware","cisco:aironet_1542d_firmware","cisco:aironet_1542i_firmware","cisco:aironet_1552_firmware","cisco:aironet_1552h_firmware","cisco:aironet_1572_firmware","cisco:aironet_1702_firmware","cisco:aironet_1800_firmware","cisco:aironet_1800i_firmware","cisco:aironet_1810_firmware","cisco:aironet_1810w_firmware","cisco:aironet_1815_firmware","cisco:aironet_1815i_firmware","cisco:aironet_1832_firmware","cisco:aironet_1842_firmware","cisco:aironet_1852_firmware","cisco:aironet_2702_firmware","cisco:aironet_2800_firmware","cisco:aironet_2800e_firmware","cisco:aironet_2800i_firmware","cisco:aironet_3702_firmware","cisco:aironet_3800_firmware","cisco:aironet_3800e_firmware","cisco:aironet_3800i_firmware","cisco:aironet_3800p_firmware","cisco:aironet_4800_firmware","cisco:aironet_ap803_firmware","cisco:aironet_iw3702_firmware","cisco:catalyst_9105_firmware"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2020-26139","score":0.06487,"percentile":0.93757,"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."]}