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Vulnerability record · CVE-2003-1568 · published 6 February 2009

CVE-2003-1568: Goahead webserver improper input validation vulnerability

Goahead · Goahead Webserver

GoAhead WebServer before 2.1.6 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an invalid URL, related to the websSafeUrl function.

5.0 CVSS 2.0 Medium EPSS 1.6% · top 24.7% CWE-20 · Improper input validation
5.0CVSS 2.0 base score
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
16 Jun 2026Last modified by NVD

Description

GoAhead WebServer before 2.1.6 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an invalid URL, related to the websSafeUrl function.

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

Affected products

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

References

LinkTags
http://data.goahead.com/Software/Webserver/2.1.8/release.htm#null-pointer-crash-in-webssafeurl
http://data.goahead.com/Software/Webserver/2.1.8/release.htm#null-pointer-crash-in-webssafeurl

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Related vulnerabilities

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

7.5CVE-2002-2431Goahead webserver vulnerabilityUnspecified vulnerability in GoAhead WebServer before 2.1.4 allows remote attackers to cause "incorrect behavior" via unknown "malicious code," relat…EPSS 1.2%7.5CVE-2002-1951Goahead software goahead webserver vulnerabilityBuffer overflow in GoAhead WebServer 2.1 allows remote attackers to execute arbitrary code via a long HTTP GET request with a large number of subdire…EPSS 5.8%7.5CVE-2002-0681Goahead software goahead webserver vulnerabilityCross-site scripting vulnerability in GoAhead Web Server 2.1 allows remote attackers to execute script as other web users via script in a URL that ge…EPSS 8.3%5.0CVE-2009-5111Goahead webserver vulnerabilityGoAhead WebServer allows remote attackers to cause a denial of service (daemon outage) via partial HTTP requests, as demonstrated by Slowloris.EPSS 1.1%5.0CVE-2002-2427Goahead webserver improper authentication vulnerabilityThe security handler in GoAhead WebServer before 2.1.1 allows remote attackers to bypass authentication and obtain access to protected web content vi…EPSS 1.3%5.0CVE-2002-2428Goahead webserver improper input validation vulnerabilitywebs.c in GoAhead WebServer before 2.1.4 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an HTTP…EPSS 1.6%5.0CVE-2002-2429Goahead webserver improper input validation vulnerabilitywebs.c in GoAhead WebServer before 2.1.4 allows remote attackers to cause a denial of service (daemon crash) via an HTTP POST request that contains a…EPSS 1.1%5.0CVE-2002-2430Goahead webserver vulnerabilityGoAhead WebServer before 2.1.1 allows remote attackers to cause a denial of service (CPU consumption) by performing a socket disconnect to terminate …EPSS 1.1%

Source: NIST National Vulnerability Database (record CVE-2003-1568), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.