What’s Vulnerable › Vulnerabilities

CVE-2025-9466: ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities

• 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: 2026-01-20 · updated 2026-06-17
• Weakness: CWE-400

Description

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles EtherNet/IP and CIP grammar tests, the device reboots unexpectedly, causing the Link State Monitor to go down for several seconds.

Affected products

• Rockwell Automation ArmorStart® LT: through 2.002

References

• https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1768.html

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