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Vulnerability record · CVE-2025-9279 · published 20 January 2026

CVE-2025-9279: Rockwellautomation armorstart lt firmware uncontrolled resource consumption vulnerability

Rockwellautomation · Armorstart Lt Firmware

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

8.7 CVSS 4.0 High EPSS 0.60% · top 53.6% CWE-400 · Uncontrolled resource consumption
8.7CVSS 4.0 base score
0.60%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles EtherNet/IP Step Limit Storm 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.7CVE-2025-9466Rockwellautomation armorstart lt firmware uncontrolled resource consumption vulnerabilityA security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles EtherNet/IP and CIP …EPSS 0.64%8.7CVE-2025-9465Rockwellautomation armorstart lt firmware uncontrolled resource consumption vulnerabilityA security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles Comprehensive gramma…EPSS 0.48%8.7CVE-2025-9464Rockwellautomation armorstart lt firmware uncontrolled resource consumption vulnerabilityA security issue exists within ArmorStart® LT that can result in a denial-of-service condition. This vulnerability is triggered during fuzzing of mul…EPSS 0.39%8.7CVE-2025-9283Rockwellautomation armorstart lt firmware uncontrolled resource consumption vulnerabilityA security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles EtherNet/IP Step Lim…EPSS 0.60%8.7CVE-2025-9282Rockwellautomation armorstart lt firmware uncontrolled resource consumption vulnerabilityA security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles Comprehensive limite…EPSS 0.60%8.7CVE-2025-9281Rockwellautomation armorstart lt firmware uncontrolled resource consumption vulnerabilityA security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles Comprehensive step l…EPSS 0.60%8.7CVE-2025-9280Rockwellautomation armorstart lt firmware uncontrolled resource consumption vulnerabilityA security issue exists within ArmorStart® LT that can result in a denial-of-service condition. Fuzzing performed using Defensics causes the device t…EPSS 0.48%8.7CVE-2025-9278Rockwellautomation armorstart lt firmware uncontrolled resource consumption vulnerabilityA security issue exists within ArmorStart® LT that can result in a denial-of-service condition. After running a Burp Suite active scan, the device lo…EPSS 0.48%

Source: NIST National Vulnerability Database (record CVE-2025-9279), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.