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Vulnerability record · CVE-1999-0441 · published 22 February 1999

CVE-1999-0441: Qbik wingate vulnerability

Qbik · Wingate

Remote attackers can perform a denial of service in WinGate machines using a buffer overflow in the Winsock Redirector Service.

5.0 CVSS 2.0 Medium EPSS 5.5% · top 7.5%
5.0CVSS 2.0 base score
5.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
16 Jun 2026Last modified by NVD

Description

Remote attackers can perform a denial of service in WinGate machines using a buffer overflow in the Winsock Redirector Service.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.eeye.com/html/Research/Advisories/AD02221999.html
http://www.securityfocus.com/bid/509
http://www.eeye.com/html/Research/Advisories/AD02221999.html
http://www.securityfocus.com/bid/509

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2020-13866Qbik wingate incorrect permission assignment vulnerabilityWinGate v9.4.1.5998 has insecure permissions for the installation directory, which allows local users to gain privileges by replacing an executable f…EPSS 1.1%7.5CVE-2006-2926Qbik WinGate WWW Proxy Server stack buffer overflow via long URLThe WWW Proxy Server component of Qbik WinGate 6.1.1.1077 contains a stack-based buffer overflow triggered by a long URL in an HTTP request. A remote…EPSS 71%analysed7.5CVE-1999-0291Qbik wingate vulnerabilityThe WinGate proxy is installed without a password, which allows remote attackers to redirect connections without authentication.EPSS 2.1%6.5CVE-2008-3606Qbik wingate memory buffer overflow vulnerabilityHeap-based buffer overflow in the IMAP service in Qbik WinGate 6.2.2.1137 and earlier allows remote authenticated users to cause a denial of service …EPSS 4.5%5.5CVE-2006-2917Qbik wingate vulnerabilityDirectory traversal vulnerability in the IMAP server in WinGate 6.1.2.1094 and 6.1.3.1096, and possibly other versions before 6.1.4 Build 1099, allow…EPSS 1.4%5.4CVE-2009-0802Qbik wingate permissions and access controls vulnerabilityQbik WinGate, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attacker…EPSS 2.4%5.0CVE-2007-4335Qbik wingate vulnerabilityFormat string vulnerability in the SMTP server component in Qbik WinGate 5.x and 6.x before 6.2.2 allows remote attackers to cause a denial of servic…EPSS 2.0%5.0CVE-2006-4518Qbik wingate vulnerabilityQbik 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 compr…EPSS 1.8%

Source: NIST National Vulnerability Database (record CVE-1999-0441), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.