CVE-2006-2450

CVE-2006-2450 is a high-severity vulnerability in Libvncserver with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as "Type 1 - None", which is accepted even if it is not offered by the server, a different issue than CVE-2006-2369.

Frequently asked questions

What is CVE-2006-2450?
auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as "Type 1 - None", which is accepted even if it is not offered by the server, a different issue than CVE-2006-2369.
How severe is CVE-2006-2450?
CVE-2006-2450 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-2450 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-2450?
CVE-2006-2450 affects Libvncserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-2450?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2006-2450 published?
CVE-2006-2450 was published on 2006-07-18 and last updated on 2026-06-16.

References

Affected products (1)

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