How severe is CVE-2006-4518?

CVE-2006-4518 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2006-4518 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4518?

CVE-2006-4518 affects Qbik Wingate. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-4518?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-4518 published?

CVE-2006-4518 was published on 2006-11-28 and last updated on 2026-06-16.

CVE-2006-4518

CVE-2006-4518 is a medium-severity vulnerability in Qbik Wingate with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Qbik Wingate
Published: 2006-11-28
Last modified: 2026-06-16

Description

Qbik WinGate 6.1.4 and earlier allows remote attackers to cause a denial of service (CPU consumption) via a DNS request with a self-referencing compressed name pointer, which triggers an infinite loop.

Frequently asked questions

What is CVE-2006-4518?: Qbik WinGate 6.1.4 and earlier allows remote attackers to cause a denial of service (CPU consumption) via a DNS request with a self-referencing compressed name pointer, which triggers an infinite loop.
How severe is CVE-2006-4518?: CVE-2006-4518 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2006-4518 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4518?: CVE-2006-4518 affects Qbik Wingate. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-4518?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-4518 published?: CVE-2006-4518 was published on 2006-11-28 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:qbik:wingate:*:*:*:*:*:*:*:*

More vulnerabilities in Qbik Wingate

CVE-2020-13866 — High (CVSS 7.8): WinGate v9.4.1.5998 has insecure permissions for the installation directory, which allows local users to gain…
CVE-2006-2926 — High (CVSS 7.5): Stack-based buffer overflow in the WWW Proxy Server of Qbik WinGate 6.1.1.1077 allows remote attackers to cause a…
CVE-1999-0291 — High (CVSS 7.5): The WinGate proxy is installed without a password, which allows remote attackers to redirect connections without…
CVE-2008-3606 — Medium (CVSS 6.5): Heap-based buffer overflow in the IMAP service in Qbik WinGate 6.2.2.1137 and earlier allows remote authenticated users…
CVE-2006-2917 — Medium (CVSS 5.5): Directory traversal vulnerability in the IMAP server in WinGate 6.1.2.1094 and 6.1.3.1096, and possibly other versions…
CVE-2009-0802 — Medium (CVSS 5.4): Qbik WinGate, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote…

All CVEs affecting Qbik Wingate →