CVE-2006-6265

critical

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.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/17897

http://www.symantec.com/avcenter/reference/Teredo_Security.pdf

http://www.securityfocus.com/archive/1/452996/100/0/threaded

http://www.securityfocus.com/archive/1/452989/100/0/threaded

Details

Source: Mitre, NVD

Published: 2006-12-04

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 5.8

Vector: CVSS2#AV:A/AC:L/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical

EPSS

EPSS: 0.02899