{"id":"CVE-2012-6435","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-6435","generatedAt":"2026-11-04T11:42:39.379Z","title":"When an affected product receives a valid CIP message from an unauthorized or unintended source to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP that instructs the CPU to stop logic execution and enter a fault state, a DoS can occur.","description":"When an affected product receives a valid CIP message from an unauthorized or unintended source to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP that instructs the CPU to stop logic execution and enter a fault state, a DoS can occur. This situation could cause loss of availability and a disruption of communication with other connected devices.\n\n\n\n\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","published":"2013-01-24T21:55:01.000Z","lastModified":"2026-06-16T23:48:06.000Z","status":"Modified","sourceIdentifier":"ics-cert@hq.dhs.gov","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-284","CWE-399"],"affected":["rockwellautomation/controllogix controllers","rockwellautomation/guardlogix controllers","rockwellautomation/micrologix","rockwellautomation/softlogix controllers","rockwellautomation/1756-enbt","rockwellautomation/1756-eweb","rockwellautomation/1768-enbt","rockwellautomation/1768-eweb","rockwellautomation/1794-aentr flex i\\/o ethernet\\/ip adapter","rockwellautomation/compactlogix","rockwellautomation/compactlogix controllers","rockwellautomation/compactlogix l32e controller","rockwellautomation/compactlogix l35e controller","rockwellautomation/controllogix","rockwellautomation/flexlogix 1788-enbt adapter","rockwellautomation/guardlogix","rockwellautomation/softlogix"],"epss":{"score":0.42769,"percentile":0.98718,"date":"2026-11-03","history":[{"date":"2026-10-30","score":0.42769,"percentile":0.98714}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 42.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-10-30T00:00:00.000Z","detail":{"to":0.42769,"from":0.33499,"percentile":0.98714},"summary":"EPSS moved from 33.5% to 42.8% probability of exploitation in the next thirty days."}],"references":[{"url":"http://rockwellautomation.custhelp.com/app/answers/detail/a_id/54102","source":"ics-cert@hq.dhs.gov"},{"url":"https://rockwellautomation.custhelp.com/app/answers/detail/a_id/470154","source":"ics-cert@hq.dhs.gov"},{"url":"https://rockwellautomation.custhelp.com/app/answers/detail/aid/470155","source":"ics-cert@hq.dhs.gov"},{"url":"https://rockwellautomation.custhelp.com/app/answers/detail/aid/470156","source":"ics-cert@hq.dhs.gov"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-13-011-03","source":"ics-cert@hq.dhs.gov"},{"url":"http://www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdf","tags":["US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-6435","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}