What’s Vulnerable › Vulnerabilities

CVE-2024-21916: Rockwell Automation Denial-of-service Vulnerability in ICE1 Controller

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-01-31 · updated 2026-06-17
• Weakness: CWE-119

Description

A denial-of-service vulnerability exists in specific Rockwell Automation ControlLogix ang GuardLogix controllers. If exploited, the product could potentially experience a major nonrecoverable fault (MNRF). The device will restart itself to recover from the MNRF.

Affected products

• Rockwellautomation Controllogix 5570 Controller Firmware: 20.011
• Rockwellautomation Controllogix 5570 Redundant Controller Firmware: 20.054_kit1
• Rockwellautomation Guardlogix 5570 Controller Firmware: 20.011

References

• https://www.rockwellautomation.com/en-us/support/advisory.SD1661.html
• https://www.rockwellautomation.com/en-us/support/advisory.SD1661.html

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