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Vulnerability record · CVE-2006-1999 · published 25 April 2006

CVE-2006-1999: Openttd vulnerability

Openttd · Openttd

The multiplayer menu in OpenTTD 0.4.7 allows remote attackers to cause a denial of service via a UDP packet with an incorrect size, which causes the client to return to the main menu.

5.0 CVSS 2.0 Medium EPSS 9.1% · top 4.8%
5.0CVSS 2.0 base score
9.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

The multiplayer menu in OpenTTD 0.4.7 allows remote attackers to cause a denial of service via a UDP packet with an incorrect size, which causes the client to return to the main menu.

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://aluigi.altervista.org/adv/openttdx-adv.txt ExploitPatchVendor Advisory
http://secunia.com/advisories/19768 Vendor Advisory
http://secunia.com/advisories/21799
http://security.gentoo.org/glsa/glsa-200609-03.xml
http://www.securityfocus.com/archive/1/431871/100/0/threaded
http://www.securityfocus.com/bid/17661
http://www.vupen.com/english/advisories/2006/1480
https://exchange.xforce.ibmcloud.com/vulnerabilities/26004
http://aluigi.altervista.org/adv/openttdx-adv.txt ExploitPatchVendor Advisory
http://secunia.com/advisories/19768 Vendor Advisory
http://secunia.com/advisories/21799
http://security.gentoo.org/glsa/glsa-200609-03.xml
http://www.securityfocus.com/archive/1/431871/100/0/threaded
http://www.securityfocus.com/bid/17661
http://www.vupen.com/english/advisories/2006/1480
https://exchange.xforce.ibmcloud.com/vulnerabilities/26004

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Related vulnerabilities

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

10.0CVE-2008-3576Openttd memory buffer overflow vulnerabilityBuffer overflow in the TruncateString function in src/gfx.cpp in OpenTTD before 0.6.2 allows remote attackers to cause a denial of service (daemon cr…EPSS 6.3%9.0CVE-2008-3547Openttd memory buffer overflow vulnerabilityBuffer overflow in the server in OpenTTD 0.6.1 and earlier allows remote authenticated users to cause a denial of service (persistent game disruption…EPSS 4.7%7.5CVE-2011-3341Openttd vulnerabilityMultiple off-by-one errors in order_cmd.cpp in OpenTTD before 1.1.3 allow remote attackers to cause a denial of service (daemon crash) or possibly ex…EPSS 3.8%7.5CVE-2011-3342Openttd memory buffer overflow vulnerabilityMultiple buffer overflows in OpenTTD before 1.1.3 allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary co…EPSS 5.0%7.5CVE-2010-4168Openttd use after free vulnerabilityMultiple use-after-free vulnerabilities in OpenTTD 1.0.x before 1.0.5 allow (1) remote attackers to cause a denial of service (invalid write and daem…EPSS 3.7%7.5CVE-2005-2764Openttd vulnerabilityMultiple buffer overflows in OpenTTD before 0.4.0.1 allow attackers to cause a denial of service (crash) and possibly execute arbitrary code via unsp…EPSS 2.9%7.5CVE-2005-2763Openttd vulnerabilityMultiple format string vulnerabilities in OpenTTD before 0.4.0.1 allow remote attackers to cause a denial of service (crash) and possibly execute arb…EPSS 2.7%6.5CVE-2010-0401Openttd permissions and access controls vulnerabilityOpenTTD before 1.0.1 accepts a company password for authentication in response to a request for the server password, which allows remote authenticate…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2006-1999), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.