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CVE-2006-6265
Teredo clients, when located behind a restricted NAT, allow remote attackers to establish an inbound connection without the guessing…
- 5.8MediumCVSS base score
- 4.6%Exploitation in 30 daysEPSS · top 8.2% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By mitre
- 1 day later
· 1 day later
Published
- 18 years later
· 18 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.8 | AV:A/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 4.6% · top 8.2% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.
Affected products
n/a
- affected n/a
References
References4
- http://www.symantec.com/avcenter/reference/Teredo_Security.pdf (opens in a new tab)x_refsource_MISCx_transferred
- 20061129 Re: [Full-disclosure] New report on Teredo security (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20061129 New report on Teredo security (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- ipv6-teredo(17897) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2006-6248 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2006-6265)Record last updated .