CVE-2012-6438

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 NIC to crash. Successful exploitation of this vulnerability could cause loss of availability and a disruption in communications with other connected devices. Rockwell 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

• CWE-119
• CWE-119

• 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
• http://www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdfUS Government Resource

Published

Jan 24, 2013

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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