{"cve":"CVE-2012-6436","nvd":{"published":"2013-01-24T21:55:01.477","modified":"2026-06-16T23:48:06.090","status":"Modified","description":"The device does not properly validate the data being sent to the buffer. An attacker can send a malformed CIP packet to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP, which creates a buffer overflow and causes the CPU to crash. Successful exploitation of this vulnerability could cause loss of availability and a disruption in communications with other connected devices.\n\n\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","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-119"],"references":["http://rockwellautomation.custhelp.com/app/answers/detail/a_id/54102","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","https://www.cisa.gov/news-events/ics-advisories/icsa-13-011-03"],"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-2012-6436","score":0.35221,"percentile":0.98441,"date":"2026-11-01"},"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."]}