CVE-2025-9464

Rockwell Automation ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities

Published Jan 20, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. This vulnerability is triggered during fuzzing of multiple CIP classes, which causes the CIP port to become unresponsive.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Rockwellautomation armorstart Lt Firmware
CPEs cpe:2.3:h:rockwellautomation:armorstart_lt:-:*:*:*:*:*:*:*
cpe:2.3:o:rockwellautomation:armorstart_lt_firmware:*:*:*:*:*:*:*:*
Vendors & Products Rockwellautomation armorstart Lt Firmware
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
First Time appeared Rockwellautomation
Rockwellautomation armorstart Lt
Vendors & Products Rockwellautomation
Rockwellautomation armorstart Lt
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. This vulnerability is triggered during fuzzing of multiple CIP classes, which causes the CIP port to become unresponsive.
Title Rockwell Automation ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities
Weaknesses CWE-400
References
Metrics cvssV4_0

{'score': 8.7, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Rockwell
Published
Updated
Jan 20, 2026, 4:01 PM
Reserved
Aug 25, 2025, 2:52 PM
Status
Analyzed
Published
Jan 20, 2026, 2:16 PM
Modified
Jun 17, 2026, 10:09 AM