{"id":"CVE-2020-24588","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-24588","generatedAt":"2026-10-27T23:45:49.155Z","title":"Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets.","description":"The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets.","published":"2021-05-11T20:15:09.000Z","lastModified":"2026-06-17T03:05:49.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":3.5,"severity":"LOW","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"},"cwe":["CWE-327"],"affected":["ieee/ieee 802.11","linux/mac80211","microsoft/windows 10","microsoft/windows 7","microsoft/windows 8.1","microsoft/windows rt 8.1","microsoft/windows server 2008","microsoft/windows server 2012","microsoft/windows server 2016","microsoft/windows server 2019","debian/debian linux","siemens/scalance w1748-1 firmware","siemens/scalance w1750d firmware","siemens/scalance w1788-1 firmware","siemens/scalance w1788-2 firmware","siemens/scalance w1788-2ia firmware","siemens/scalance w721-1 firmware","siemens/scalance w722-1 firmware","siemens/scalance w734-1 firmware","siemens/scalance w738-1 firmware","siemens/scalance w748-1 firmware","siemens/scalance w761-1 firmware","siemens/scalance w774-1 firmware","siemens/scalance w778-1 firmware","siemens/scalance w786-1 firmware","siemens/scalance w786-2 firmware","siemens/scalance w786-2ia firmware","siemens/scalance w788-1 firmware","siemens/scalance w788-2 firmware","siemens/scalance wam763-1 firmware","siemens/scalance wam766-1 firmware","siemens/scalance wam766-1 6ghz firmware","siemens/scalance wum763-1 firmware","siemens/scalance wum766-1 firmware","siemens/scalance wum766-1 6ghz firmware","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 firmware","cisco/1100-4p firmware","cisco/1100-8p 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 1800 firmware"],"epss":{"score":0.03611,"percentile":0.89409,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (3.61%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.openwall.com/lists/oss-security/2021/05/11/12","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html","source":"cve@mitre.org"},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.fragattacks.com","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2021/05/11/12","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.fragattacks.com","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019200.html","source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-913875.html","source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-24588","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}