CVE-2025-9466

ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities

CVSS 8.7 HIGHEPSS 0.6%CWE-400

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.7EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

20 Jan 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected products

Rockwell Automation · ArmorStart® LT

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References

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