CompactLogix 5370 vulnerabilities

3 known vulnerabilities in CompactLogix 5370 from Rockwell Automation. 3 are rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 8.7 High severity

  CompactLogix 5370: Improper Validation of Integrity Check Value

  CVE-2025-11694Jun 16, 2026Rockwell Automation

  A security issue exists within 1769 CompactLogix controllers due to the missing validation of sequence numbers and source IP addresses in the CIP protocol. This allows attacker to abuse the exposed Connection ID’s visible on the web interface to perform denial

• 7.1 High severity

  CompactLogix® 5370: Improper Validation of Specified Quantity in Input

  CVE-2025-11743Jan 20, 2026Rockwell Automation

  A denial-of-service security issue in the affected product. The security issue occurs when a malformed CIP forward open message is sent. This could result in a major nonrecoverable fault a restart is required to recover.

• 7.5 High severity

  A vulnerability exists in the Rockwell Automation controllers that allows a malformed CIP…

  CVE-2022-3157Dec 16, 2022Rockwell AutomationEPSS 1.52%

  A vulnerability exists in the Rockwell Automation controllers that allows a malformed CIP request to cause a major non-recoverable fault (MNRF) and a denial-of-service condition (DOS).