{"cve":"CVE-2020-24587","nvd":{"published":"2021-05-11T20:15:08.580","modified":"2026-06-17T03:05:48.880","status":"Modified","description":"The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","score":2.6},"cwes":["CWE-327"],"references":["http://www.openwall.com/lists/oss-security/2021/05/11/12","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","https://lists.debian.org/debian-lts-announce/2023/04/msg00002.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-2020-24587","score":0.02592,"percentile":0.85307,"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."]}