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Vulnerability record · CVE-2012-3436 · published 9 October 2012

CVE-2012-3436: Openttd improper input validation vulnerability

Openttd · Openttd

OpenTTD 0.6.0 through 1.2.1 does not properly validate requests to clear a water tile, which allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a certain sequence of steps related to "the water/coast aspect of tiles which also have railtracks on one half."

5.0 CVSS 2.0 Medium EPSS 3.4% · top 11.4% CWE-20 · Improper input validation
5.0CVSS 2.0 base score
3.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
22References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

OpenTTD 0.6.0 through 1.2.1 does not properly validate requests to clear a water tile, which allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a certain sequence of steps related to "the water/coast aspect of tiles which also have railtracks on one half."

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://bugs.openttd.org/task/5254
http://lists.opensuse.org/opensuse-updates/2012-08/msg00043.html
http://secunia.com/advisories/50042 Vendor Advisory
http://security.openttd.org/en/CVE-2012-3436
http://vcs.openttd.org/svn/changeset/24439
http://vcs.openttd.org/svn/changeset/24449 Exploit
http://www.openwall.com/lists/oss-security/2012/07/27/5
http://www.openwall.com/lists/oss-security/2012/07/28/7
http://www.openwall.com/lists/oss-security/2012/07/31/5
http://www.securityfocus.com/bid/54720
https://exchange.xforce.ibmcloud.com/vulnerabilities/77266
http://bugs.openttd.org/task/5254
http://lists.opensuse.org/opensuse-updates/2012-08/msg00043.html
http://secunia.com/advisories/50042 Vendor Advisory
http://security.openttd.org/en/CVE-2012-3436
http://vcs.openttd.org/svn/changeset/24439
http://vcs.openttd.org/svn/changeset/24449 Exploit
http://www.openwall.com/lists/oss-security/2012/07/27/5
http://www.openwall.com/lists/oss-security/2012/07/28/7
http://www.openwall.com/lists/oss-security/2012/07/31/5
http://www.securityfocus.com/bid/54720
https://exchange.xforce.ibmcloud.com/vulnerabilities/77266

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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-2012-3436), CISA KEV, FIRST EPSS (scores of 2026-10-15). This page is refreshed as NVD updates the record.