CVE-2006-6858

CVE-2006-6858 is a medium-severity vulnerability in Miredo with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Miredo 0.9.8 through 1.0.5 does not properly authenticate a Teredo bubble during UDP hole punching with HMAC-MD5-64 hashing, which allows remote attackers to impersonate an arbitrary Teredo client.

Frequently asked questions

What is CVE-2006-6858?
Miredo 0.9.8 through 1.0.5 does not properly authenticate a Teredo bubble during UDP hole punching with HMAC-MD5-64 hashing, which allows remote attackers to impersonate an arbitrary Teredo client.
How severe is CVE-2006-6858?
CVE-2006-6858 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2006-6858 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6858?
CVE-2006-6858 primarily affects Miredo. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-6858?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-6858 published?
CVE-2006-6858 was published on 2006-12-31 and last updated on 2026-06-16.

References

Affected products (4)