{"cve":"CVE-2012-6439","nvd":{"published":"2013-01-24T21:55:01.650","modified":"2026-06-16T23:48:06.627","status":"Modified","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","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-284"],"references":["http://rockwellautomation.custhelp.com/app/answers/detail/a_id/54102","http://www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdf","https://rockwellautomation.custhelp.com/app/answers/detail/a_id/470154","https://rockwellautomation.custhelp.com/app/answers/detail/aid/470155","https://rockwellautomation.custhelp.com/app/answers/detail/aid/470156"],"products":["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:controllogix_controllers","rockwellautomation:flexlogix_1788-enbt_adapter","rockwellautomation:guardlogix","rockwellautomation:guardlogix_controllers","rockwellautomation:micrologix","rockwellautomation:softlogix","rockwellautomation:softlogix_controllers"],"source":"nvd","synced_at":"2026-10-19T20:27:27.940201468+00:00"},"epss":{"cve":"CVE-2012-6439","score":0.2318,"percentile":0.97769,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}