{"api_version":"1","generated_at":"2026-07-23T19:40:36+00:00","cve":"CVE-2011-3486","urls":{"html":"https://cve.report/CVE-2011-3486","api":"https://cve.report/api/cve/CVE-2011-3486.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2011-3486","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-3486"},"summary":{"title":"CVE-2011-3486","description":"Beckhoff TwinCAT 2.11.0.2004 and earlier allows remote attackers to cause a denial of service via a crafted request to UDP port 48899, which triggers an out-of-bounds read.","state":"PUBLISHED","assigner":"mitre","published_at":"2011-09-16 14:28:11","updated_at":"2026-04-29 01:13:23"},"problem_types":["CWE-119","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"5","severity":"","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"}}],"references":[{"url":"http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-256-06.pdf","name":"http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-256-06.pdf","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["US Government Resource"],"title":"404 - File Not Found | CISA","mime":"application/pdf","httpstatus":"404","archivestatus":"200"},{"url":"http://osvdb.org/75495","name":"http://osvdb.org/75495","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"-1","archivestatus":"0"},{"url":"http://aluigi.altervista.org/adv/twincat_1-adv.txt","name":"http://aluigi.altervista.org/adv/twincat_1-adv.txt","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit"],"title":"","mime":"text/plain","httpstatus":"200","archivestatus":"200"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/69765","name":"https://exchange.xforce.ibmcloud.com/vulnerabilities/69765","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"IBM X-Force Exchange","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://securityreason.com/securityalert/8380","name":"http://securityreason.com/securityalert/8380","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Beckhoff TwinCAT Denial of Service - SecurityReason.com","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2011-3486","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-3486","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2011","cve_id":"3486","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"beckhoff","cpe5":"twincat","cpe6":"2.10","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2011","cve_id":"3486","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"beckhoff","cpe5":"twincat","cpe6":"2.7","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2011","cve_id":"3486","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"beckhoff","cpe5":"twincat","cpe6":"2.8","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2011","cve_id":"3486","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"beckhoff","cpe5":"twincat","cpe6":"2.9","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2011","cve_id":"3486","vulnerable":"1","versionEndIncluding":"2.11.0.2004","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"beckhoff","cpe5":"twincat","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-06T23:37:47.721Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"twincat-datagram-dos(69765)","tags":["vdb-entry","x_refsource_XF","x_transferred"],"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/69765"},{"name":"8380","tags":["third-party-advisory","x_refsource_SREASON","x_transferred"],"url":"http://securityreason.com/securityalert/8380"},{"tags":["x_refsource_MISC","x_transferred"],"url":"http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-256-06.pdf"},{"name":"75495","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"],"url":"http://osvdb.org/75495"},{"tags":["x_refsource_MISC","x_transferred"],"url":"http://aluigi.altervista.org/adv/twincat_1-adv.txt"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2011-09-13T00:00:00.000Z","descriptions":[{"lang":"en","value":"Beckhoff TwinCAT 2.11.0.2004 and earlier allows remote attackers to cause a denial of service via a crafted request to UDP port 48899, which triggers an out-of-bounds read."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2017-08-28T12:57:01.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"name":"twincat-datagram-dos(69765)","tags":["vdb-entry","x_refsource_XF"],"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/69765"},{"name":"8380","tags":["third-party-advisory","x_refsource_SREASON"],"url":"http://securityreason.com/securityalert/8380"},{"tags":["x_refsource_MISC"],"url":"http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-256-06.pdf"},{"name":"75495","tags":["vdb-entry","x_refsource_OSVDB"],"url":"http://osvdb.org/75495"},{"tags":["x_refsource_MISC"],"url":"http://aluigi.altervista.org/adv/twincat_1-adv.txt"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2011-3486","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Beckhoff TwinCAT 2.11.0.2004 and earlier allows remote attackers to cause a denial of service via a crafted request to UDP port 48899, which triggers an out-of-bounds read."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"twincat-datagram-dos(69765)","refsource":"XF","url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/69765"},{"name":"8380","refsource":"SREASON","url":"http://securityreason.com/securityalert/8380"},{"name":"http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-256-06.pdf","refsource":"MISC","url":"http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-256-06.pdf"},{"name":"75495","refsource":"OSVDB","url":"http://osvdb.org/75495"},{"name":"http://aluigi.altervista.org/adv/twincat_1-adv.txt","refsource":"MISC","url":"http://aluigi.altervista.org/adv/twincat_1-adv.txt"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2011-3486","datePublished":"2011-09-16T14:00:00.000Z","dateReserved":"2011-09-16T00:00:00.000Z","dateUpdated":"2024-08-06T23:37:47.721Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2011-09-16 14:28:11","lastModifiedDate":"2026-04-29 01:13:23","problem_types":["CWE-119","n/a"],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:beckhoff:twincat:*:*:*:*:*:*:*:*","versionEndIncluding":"2.11.0.2004","matchCriteriaId":"1B92AE1B-8C52-49A7-9E77-D53BF2F97B82"},{"vulnerable":true,"criteria":"cpe:2.3:a:beckhoff:twincat:2.7:*:*:*:*:*:*:*","matchCriteriaId":"193DDD23-9633-4FE3-87E3-CE99A6C5F0EE"},{"vulnerable":true,"criteria":"cpe:2.3:a:beckhoff:twincat:2.8:*:*:*:*:*:*:*","matchCriteriaId":"47ACBF0A-C4E4-455B-972C-AC5393A4C8F8"},{"vulnerable":true,"criteria":"cpe:2.3:a:beckhoff:twincat:2.9:*:*:*:*:*:*:*","matchCriteriaId":"99B6EF62-3FFF-429B-971C-9D6471EFE89B"},{"vulnerable":true,"criteria":"cpe:2.3:a:beckhoff:twincat:2.10:*:*:*:*:*:*:*","matchCriteriaId":"8CAC2548-00B0-4394-A10F-85F28351B2F9"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2011","CveId":"3486","Ordinal":"1","Title":"CVE-2011-3486","CVE":"CVE-2011-3486","Year":"2011"},"notes":[{"CveYear":"2011","CveId":"3486","Ordinal":"1","NoteData":"Beckhoff TwinCAT 2.11.0.2004 and earlier allows remote attackers to cause a denial of service via a crafted request to UDP port 48899, which triggers an out-of-bounds read.","Type":"Description","Title":"CVE-2011-3486"},{"CveYear":"2011","CveId":"3486","Ordinal":"2","NoteData":"2011-09-16","Type":"Other","Title":"Published"},{"CveYear":"2011","CveId":"3486","Ordinal":"3","NoteData":"2017-08-28","Type":"Other","Title":"Modified"}]}}}