Critical severity9.8NVD Advisory· Published Jul 12, 2023· Updated Jun 17, 2026
CVE-2023-3595
CVE-2023-3595
Description
Where this vulnerability exists in the Rockwell Automation 1756 EN2* and 1756 EN3* ControlLogix communication products, it could allow a malicious user to perform remote code execution with persistence on the target system through maliciously crafted CIP messages. This includes the ability to modify, deny, and exfiltrate data passing through the device.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
15- cpe:2.3:o:rockwellautomation:1756-en2f_series_a_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1756-en2f_series_b_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1756-en2f_series_c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2t_series_a_firmware:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:rockwellautomation:1756-en2t_series_a_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1756-en2t_series_c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2t_series_b_firmware:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:rockwellautomation:1756-en2t_series_b_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1756-en2t_series_d_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:1756-en2tr_series_a_firmware:-:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:rockwellautomation:1756-en2tr_series_a_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1756-en2tr_series_b_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1756-en2tr_series_c_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1756-en3tr_series_a_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1756-en3tr_series_b_firmware:-:*:*:*:*:*:*:*
- Range: <=11.003
Patches
Vulnerability mechanics
References
1- rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140010nvdPermissions RequiredVendor Advisory
News mentions
1- Coordinated "cyberattack" on U.S. water utilities: What you need to knowTenable Blog · Jul 29, 2026