CVE-2026-9637
A denial-of-service security issue exists in the affected Logix platforms listed in the table above. The security issue stems from improper validation of input length during CIP message processing. This can result in a major nonrecoverable fault (MNRF), requiring a power cycle to recover
Published:Sep 1, 2026
Last Modified:Sep 1, 2026
EPS:Sep 1, 2026
EPSS Score:
CVSS Score:8.7
Affected Products
Vendor
Product
Action
Vendor
Rockwell Automation
Product
Compactlogix 5380 Controllogix 5580
Rockwell Automation
Compactlogix 5380 Controllogix 5580
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
