{"id":"CVE-2020-27338","aliases":["EUVD-2020-19851","GHSA-2v93-8mhc-6mf8"],"status":"published","title":"An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6...","description":"An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6 client component allows an unauthenticated remote attacker to cause an Out of Bounds Read, and possibly a Denial of Service via adjacent network access.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AC:H/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0081,"percentile":0.57398,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-20"],"published":"2020-12-22T21:04:13Z","modified":"2026-06-17T03:09:08Z","products":[{"vendor":"treck","product":"ipv6"}],"references":[{"url":"https://treck.com/vulnerability-response-information/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20210201-0003/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27338"},{"url":"https://github.com/advisories/GHSA-2v93-8mhc-6mf8"}],"sources":{"cve":[{"id":"CVE-2020-27338","description":"An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6 client component allows an unauthenticated remote attacker to cause an Out of Bounds Read, and possibly a Denial of Service via adjacent network access.","status":"published","published":"2020-12-22T21:04:13Z","modified":"2024-08-04T16:11:36.591Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AC:H/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-19851","description":"An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6 client component allows an unauthenticated remote attacker to cause an Out of Bounds Read, and possibly a Denial of Service via adjacent network access.","status":"published","published":"2020-12-22T21:04:13Z","modified":"2024-08-04T16:11:36Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AC:H/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N","level":"medium"}],"updated_at":"2026-11-03T03:07:12.940476Z"}],"ghsa":[{"id":"GHSA-2v93-8mhc-6mf8","title":"An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6...","description":"An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6 client component allows an unauthenticated remote attacker to cause an Out of Bounds Read, and possibly a Denial of Service via adjacent network access.","status":"published","published":"2022-05-24T17:37:05Z","modified":"2023-01-29T05:05:08Z","cwes":["CWE-125"],"updated_at":"2026-11-02T14:45:43.003111Z"}],"nvd":[{"id":"CVE-2020-27338","description":"An issue was discovered in Treck IPv6 before 6.0.1.68. Improper Input Validation in the DHCPv6 client component allows an unauthenticated remote attacker to cause an Out of Bounds Read, and possibly a Denial of Service via adjacent network access.","status":"published","published":"2020-12-22T22:15:14.053Z","modified":"2026-06-17T03:09:08.87Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.8,"vector":"AV:A/AC:L/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20","CWE-125"],"updated_at":"2026-11-02T14:06:27.73474Z"}]}}