CVE-2023-2262: Rockwellautomation 1756-EN2F Series A Firmware

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

A buffer overflow vulnerability exists in the Rockwell Automation select 1756-EN* communication devices. If exploited, a threat actor could potentially leverage this vulnerability to perform a remote code execution. To exploit this vulnerability, a threat actor would have to send a maliciously crafted CIP request to device.

Affected products

• Rockwellautomation 1756-EN2F Series A Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2F Series B Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2F Series C Firmware: up to and including 11.002
• Rockwellautomation 1756-EN2FK Series A Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2FK Series B Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2FK Series C Firmware: up to and including 11.002
• Rockwellautomation 1756-EN2T Series A Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2T Series B Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2T Series C Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2T Series D Firmware: up to and including 11.002
• Rockwellautomation 1756-EN2TK Series A Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2TK Series B Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2TK Series C Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2TP Series A Firmware: up to and including 11.002
• Rockwellautomation 1756-EN2TPK Series A Firmware: up to and including 11.002
• Rockwellautomation 1756-EN2TPXT Series A Firmware: up to and including 11.002
• Rockwellautomation 1756-EN2TR Series A Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2TR Series B Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2TR Series C Firmware: up to and including 11.002
• Rockwellautomation 1756-EN2TRK Series A Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2TRK Series B Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2TRK Series C Firmware: up to and including 11.002
• Rockwellautomation 1756-EN2TRXT Series A Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2TRXT Series B Firmware: from 5.008, up to and including 5.028
• Rockwellautomation 1756-EN2TRXT Series C Firmware: up to and including 11.002
• and 8 more

Published 2023-09-20. Last modified 2026-06-17.