{"id":"CVE-2020-11899","aliases":["EUVD-2020-4236","GHSA-6r3w-c7h6-wfhg"],"status":"published","title":"The Treck TCP/IP stack before 6.0.1.66 has an IPv6 Out-of-bounds Read.","description":"The Treck TCP/IP stack before 6.0.1.66 has an IPv6 Out-of-bounds Read.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.1842,"percentile":0.97276,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2020-06-17T10:27:59Z","modified":"2026-06-17T02:51:00Z","kev":{"date_added":"2022-03-03","due_date":"2022-03-17","required_action":"Apply updates per vendor 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Advisory"]},{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00295.html","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://www.kb.cert.org/vuls/id/257161","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://www.jsof-tech.com/ripple20/","tags":["x_refsource_MISC","x_transferred","Broken Link","Exploit","Third Party Advisory"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-treck-ip-stack-JyBQ5GyC","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Third Party Advisory"]},{"url":"http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-006.txt","tags":["x_refsource_CONFIRM","x_transferred","Broken Link","Third Party Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20200625-0006/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://www.dell.com/support/article/de-de/sln321836/dell-response-to-the-ripple20-vulnerabilities","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-11899","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11899"},{"url":"https://jsof-tech.com/vulnerability-disclosure-policy"},{"url":"https://security.netapp.com/advisory/ntap-20200625-0006"},{"url":"https://www.jsof-tech.com/ripple20"},{"url":"https://github.com/advisories/GHSA-6r3w-c7h6-wfhg"}],"sources":{"cve":[{"id":"CVE-2020-11899","description":"The Treck TCP/IP stack before 6.0.1.66 has an IPv6 Out-of-bounds 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