{"schemaVersion":3,"id":"CVE-2012-6439","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"When an affected\nproduct receives a valid CIP message from an unauthorized or unintended\nsource to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port\n44818/UDP that changes the product’s configuration and network\nparameters, a DoS condition can occur. This situation could cause loss\nof availability and a disruption of communication with other connected\ndevices.\n\nRockwell Automation EtherNet/IP products; 1756-ENBT, 1756-EWEB, 1768-ENBT, and 1768-EWEB communication modules; CompactLogix L32E and L35E controllers; 1788-ENBT FLEXLogix adapter; 1794-AENTR FLEX I/O EtherNet/IP adapter; ControlLogix 18 and earlier; CompactLogix 18 and earlier; GuardLogix 18 and earlier; SoftLogix 18 and earlier; CompactLogix controllers 19 and earlier; SoftLogix controllers 19 and earlier; ControlLogix controllers 20 and earlier; GuardLogix controllers 20 and earlier; and MicroLogix 1100 and 1400","dates":{"published":"2013-01-24T21:00:00.000Z","modified":"2025-06-30T21:33:10.902Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.5,"severity":"high","version":"2.0","versionLabel":"v2.0","source":"CVE.org","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"2.0","versionLabel":"v2.0","source":"CVE.org","score":8.5,"severity":"high","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:C","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":8.5,"severity":"high","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.2318,"percentile":0.97755,"severity":"high","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.2318},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.2318,"percentile":0.97755}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.2318,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.2318,"percentile":0.97755}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-284","name":"Improper Access Control","description":"The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.","type":"weakness","status":"Incomplete","abstraction":"Pillar","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/284.html"}],"affected":[{"vendor":"rockwell automation","product":"1756-enbt, 1756-eweb, 1768-enbt, 1768-eweb communication modules","name":"1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules","label":"1756-enbt, 1756-eweb, 1768-enbt, 1768-eweb communication modules","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All","noFixRecorded":false,"fixedIn":null}],"versionsText":"All","eol":null,"hubHref":"/vendor/rockwell_automation/1756-enbt_1756-eweb_1768-enbt_1768-eweb_communication_modules"},{"vendor":"rockwell automation","product":"1788-enbt flexlogix adapter","name":"1788-ENBT FLEXLogix adapter","label":"1788-enbt flexlogix adapter","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All","noFixRecorded":false,"fixedIn":null}],"versionsText":"All","eol":null,"hubHref":"/vendor/rockwell_automation/1788-enbt_flexlogix_adapter"},{"vendor":"rockwell automation","product":"1794-aentr flex i/o ethernet/ip adapter","name":"1794-AENTR FLEX I/O EtherNet/IP adapter","label":"1794-aentr flex i/o ethernet/ip adapter","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All","noFixRecorded":false,"fixedIn":null}],"versionsText":"All","eol":null,"hubHref":"/vendor/rockwell_automation/1794-aentr_flex_io_ethernetip_adapter"},{"vendor":"rockwell automation","product":"compactlogix and softlogix controllers","name":"CompactLogix and SoftLogix controllers","label":"compactlogix and softlogix controllers","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 19","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 19","eol":null,"hubHref":"/vendor/rockwell_automation/compactlogix_and_softlogix_controllers"},{"vendor":"rockwell automation","product":"compactlogix l32e and l35e controllers","name":"CompactLogix L32E and L35E controllers","label":"compactlogix l32e and l35e controllers","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All","noFixRecorded":false,"fixedIn":null}],"versionsText":"All","eol":null,"hubHref":"/vendor/rockwell_automation/compactlogix_l32e_and_l35e_controllers"},{"vendor":"rockwell automation","product":"controllogix and guardlogix controllers","name":"ControlLogix and GuardLogix controllers","label":"controllogix and guardlogix controllers","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 20","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 20","eol":null,"hubHref":"/vendor/rockwell_automation/controllogix_and_guardlogix_controllers"},{"vendor":"rockwell automation","product":"controllogix, compactlogix, guardlogix, and softlogix","name":"ControlLogix, CompactLogix, GuardLogix, and SoftLogix","label":"controllogix, compactlogix, guardlogix, and softlogix","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 18","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 18","eol":null,"hubHref":"/vendor/rockwell_automation/controllogix_compactlogix_guardlogix_and_softlogix"},{"vendor":"rockwell automation","product":"micrologix","name":"MicroLogix","label":"micrologix","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"1100","noFixRecorded":false,"fixedIn":null},{"text":"1400","noFixRecorded":false,"fixedIn":null}],"versionsText":"1100 | 1400","eol":null,"hubHref":"/vendor/rockwell_automation/micrologix"},{"vendor":"rockwellautomation","product":"1756-enbt","name":"1756-enbt","label":"1756-enbt","ecosystem":null,"cpePart":"h","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/rockwellautomation/1756-enbt"},{"vendor":"rockwellautomation","product":"1756-eweb","name":"1756-eweb","label":"1756-eweb","ecosystem":null,"cpePart":"h","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/rockwellautomation/1756-eweb"},{"vendor":"rockwellautomation","product":"1768-enbt","name":"1768-enbt","label":"1768-enbt","ecosystem":null,"cpePart":"h","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/rockwellautomation/1768-enbt"},{"vendor":"rockwellautomation","product":"1768-eweb","name":"1768-eweb","label":"1768-eweb","ecosystem":null,"cpePart":"h","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/rockwellautomation/1768-eweb"},{"vendor":"rockwellautomation","product":"1794-aentr_flex_i\\/o_ethernet\\/ip_adapter","name":"1794-aentr flex i\\/o ethernet\\/ip adapter","label":"1794-aentr_flex_i\\/o_ethernet\\/ip_adapter","ecosystem":null,"cpePart":"h","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/rockwellautomation/1794-aentr_flex_io_ethernetip_adapter"},{"vendor":"rockwellautomation","product":"compactlogix_firmware","name":"compactlogix firmware","label":"compactlogix_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 18","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 18","eol":null,"hubHref":"/vendor/rockwellautomation/compactlogix"},{"vendor":"rockwellautomation","product":"compactlogix_controllers_firmware","name":"compactlogix controllers firmware","label":"compactlogix_controllers_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 19","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 19","eol":null,"hubHref":"/vendor/rockwellautomation/compactlogix_controllers"},{"vendor":"rockwellautomation","product":"compactlogix_l32e_controller","name":"compactlogix l32e controller","label":"compactlogix_l32e_controller","ecosystem":null,"cpePart":"h","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/rockwellautomation/compactlogix_l32e_controller"},{"vendor":"rockwellautomation","product":"compactlogix_l35e_controller","name":"compactlogix l35e controller","label":"compactlogix_l35e_controller","ecosystem":null,"cpePart":"h","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/rockwellautomation/compactlogix_l35e_controller"},{"vendor":"rockwellautomation","product":"controllogix_firmware","name":"controllogix firmware","label":"controllogix_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 18","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 18","eol":null,"hubHref":"/vendor/rockwellautomation/controllogix"},{"vendor":"rockwellautomation","product":"controllogix_controllers_firmware","name":"controllogix controllers firmware","label":"controllogix_controllers_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 20","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 20","eol":null,"hubHref":"/vendor/rockwellautomation/controllogix_controllers"},{"vendor":"rockwellautomation","product":"flexlogix_1788-enbt_adapter","name":"flexlogix 1788-enbt adapter","label":"flexlogix_1788-enbt_adapter","ecosystem":null,"cpePart":"h","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/rockwellautomation/flexlogix_1788-enbt_adapter"},{"vendor":"rockwellautomation","product":"guardlogix_firmware","name":"guardlogix firmware","label":"guardlogix_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 18","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 18","eol":null,"hubHref":"/vendor/rockwellautomation/guardlogix"},{"vendor":"rockwellautomation","product":"guardlogix_controllers_firmware","name":"guardlogix controllers firmware","label":"guardlogix_controllers_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 20","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 20","eol":null,"hubHref":"/vendor/rockwellautomation/guardlogix_controllers"},{"vendor":"rockwellautomation","product":"micrologix_firmware","name":"micrologix firmware","label":"micrologix_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 1100","noFixRecorded":false,"fixedIn":null},{"text":"≤ 1400","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 1100 | ≤ 1400","eol":null,"hubHref":"/vendor/rockwellautomation/micrologix"},{"vendor":"rockwellautomation","product":"softlogix_firmware","name":"softlogix firmware","label":"softlogix_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 18","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 18","eol":null,"hubHref":"/vendor/rockwellautomation/softlogix"},{"vendor":"rockwellautomation","product":"softlogix_controllers_firmware","name":"softlogix controllers firmware","label":"softlogix_controllers_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 19","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 19","eol":null,"hubHref":"/vendor/rockwellautomation/softlogix_controllers"}],"affectedCount":25,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdf","label":"www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdf","hostname":"www.us-cert.gov","tags":["X Refsource MISC","US Government Resource"]},{"url":"https://rockwellautomation.custhelp.com/app/answers/detail/a_id/470154","label":"rockwellautomation.custhelp.com/app/answers/detail/a_id/470154","hostname":"rockwellautomation.custhelp.com","tags":[]},{"url":"https://rockwellautomation.custhelp.com/app/answers/detail/aid/470155","label":"rockwellautomation.custhelp.com/app/answers/detail/aid/470155","hostname":"rockwellautomation.custhelp.com","tags":[]},{"url":"https://rockwellautomation.custhelp.com/app/answers/detail/aid/470156","label":"rockwellautomation.custhelp.com/app/answers/detail/aid/470156","hostname":"rockwellautomation.custhelp.com","tags":[]},{"url":"http://rockwellautomation.custhelp.com/app/answers/detail/a_id/54102","label":"rockwellautomation.custhelp.com/app/answers/detail/a_id/54102","hostname":"rockwellautomation.custhelp.com","tags":[]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2013-01-24T21:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-06-30T21:33:10.902Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":39,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T11:52:11.685Z","stale":false,"partial":false}}