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.
CVE-2006-6265
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 4%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 90.1%
- KEV
- Not listed
Published
December 4, 2006
Last Modified
April 23, 2026
References (8)
- cve@mitrehttp://www.securityfocus.com/archive/1/452989/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/archive/1/452996/100/0/threaded
- cve@mitrehttp://www.symantec.com/avcenter/reference/Teredo_Security.pdf
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/17897
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/452989/100/0/threaded
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/452996/100/0/threaded
- af854a3a-2127-422b-91ae-364da2661108http://www.symantec.com/avcenter/reference/Teredo_Security.pdf
- af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/17897
Frequently asked(4)
What is CVE-2006-6265?
CVE-2006-6265 is a none vulnerability published on December 4, 2006. 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…
When was CVE-2006-6265 disclosed?
CVE-2006-6265 was first published in the National Vulnerability Database on December 4, 2006, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2006-6265 actively exploited?
CVE-2006-6265 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 90.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2006-6265?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2006-6265, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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