{"id":"CVE-2006-6265","aliases":["EUVD-2006-6248","GHSA-8q38-gvq6-rqj6"],"status":"published","title":"Teredo clients, when located behind a restricted NAT, allow remote attackers to establish an...","description":"Teredo clients, when located behind a restricted NAT, allow remote attackers to establish an inbound connection without the guessing required to find a port mapping for a traditional restricted NAT client, by (1) using the client port number contained in the Teredo address or (2) following the bubble-to-open procedure.","severity":{"version":"2.0","score":5.8,"vector":"AV:A/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.04635,"percentile":0.91774,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2006-12-04T11:00:00Z","modified":"2026-06-16T22:32:48Z","products":[{"vendor":"microsoft","product":"teredo"}],"references":[{"url":"http://www.symantec.com/avcenter/reference/Teredo_Security.pdf","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/452996/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/452989/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/17897","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-6265"},{"url":"https://github.com/advisories/GHSA-8q38-gvq6-rqj6"}],"sources":{"cve":[{"id":"CVE-2006-6265","description":"Teredo clients, when located behind a restricted NAT, allow remote attackers to establish an inbound connection without the guessing required to find a port mapping for a traditional restricted NAT client, by (1) using the client port number contained in the Teredo address or (2) following the bubble-to-open procedure.","status":"published","published":"2006-12-04T11:00:00Z","modified":"2024-08-07T20:19:35.246Z","updated_at":"2026-11-02T14:33:50.738595Z"}],"euvd":[{"id":"EUVD-2006-6248","description":"Teredo clients, when located behind a restricted NAT, allow remote attackers to establish an inbound connection without the guessing required to find a port mapping for a traditional restricted NAT client, by (1) using the client port number contained in the Teredo address or (2) following the bubble-to-open procedure.","status":"published","published":"2006-12-04T11:00:00Z","modified":"2024-08-07T20:19:35Z","updated_at":"2026-11-03T01:15:44.304484Z"}],"ghsa":[{"id":"GHSA-8q38-gvq6-rqj6","title":"Teredo clients, when located behind a restricted NAT, allow remote attackers to establish an...","description":"Teredo clients, when located behind a restricted NAT, allow remote attackers to establish an inbound connection without the guessing required to find a port mapping for a traditional restricted NAT client, by (1) using the client port number contained in the Teredo address or (2) following the bubble-to-open procedure.","status":"published","published":"2022-05-01T07:36:25Z","modified":"2023-01-31T05:02:50Z","updated_at":"2026-11-02T14:48:20.805498Z"}],"nvd":[{"id":"CVE-2006-6265","description":"Teredo clients, when located behind a restricted NAT, allow remote attackers to establish an inbound connection without the guessing required to find a port mapping for a traditional restricted NAT client, by (1) using the client port number contained in the Teredo address or (2) following the bubble-to-open procedure.","status":"published","published":"2006-12-04T11:28:00Z","modified":"2026-06-16T22:32:48.55Z","cvss":[{"version":"2.0","score":5.8,"vector":"AV:A/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:08.546281Z"}]}}