CVE-2006-6266
Teredo clients, when following item 6 of RFC4380 section 5.2.3, start direct IPv6 connectivity...
Teredo clients, when following item 6 of RFC4380 section 5.2.3, start direct IPv6 connectivity tests (aka ping tests) in response to packets from non-Teredo source addresses, which might allow remote attackers to induce Teredo clients to send packets to third parties.
Exploit likelihood
What each source reports
NVD Score used
Teredo clients, when following item 6 of RFC4380 section 5.2.3, start direct IPv6 connectivity tests (aka ping tests) in response to packets from non-Teredo source addresses, which might allow remote attackers to induce Teredo clients to send packets to third parties.
- Record
CVE-2006-6266- CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Teredo clients, when following item 6 of RFC4380 section 5.2.3, start direct IPv6 connectivity tests (aka ping tests) in response to packets from non-Teredo source addresses, which might allow remote attackers to induce Teredo clients to send packets to third parties.
- Record
CVE-2006-6266- Updated
- 2026-11-02
EUVDEUVD-2006-6249 No score
Teredo clients, when following item 6 of RFC4380 section 5.2.3, start direct IPv6 connectivity tests (aka ping tests) in response to packets from non-Teredo source addresses, which might allow remote attackers to induce Teredo clients to send packets to third parties.
- Record
EUVD-2006-6249- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x63c-6qqq-h574 No score
Teredo clients, when following item 6 of RFC4380 section 5.2.3, start direct IPv6 connectivity...
Teredo clients, when following item 6 of RFC4380 section 5.2.3, start direct IPv6 connectivity tests (aka ping tests) in response to packets from non-Teredo source addresses, which might allow remote attackers to induce Teredo clients to send packets to third parties.
- Record
GHSA-x63c-6qqq-h574- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2006-6266 is a medium vulnerability (CVSS 6.8) in Microsoft Teredo, published December 4, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 12.1%, the 96th percentile. No source names a fixed version.