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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00025.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Rockwell Automation ArmorStart® LT unaffected
Version Status Constraints
V2.002 and below affected —

Configuration 1 [-]

AND
cpe:2.3:o:rockwellautomation:armorstart_lt_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:armorstart_lt:-:*:*:*:*:*:*:*

No data.

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Vendors Products
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Armorstart Lt Subscribe

Project Subscriptions

Vendors Products
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Armorstart Lt Subscribe
Armorstart Lt Firmware Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1768.html cve-icon cve-icon
History

Mon, 02 Feb 2026 18:15:00 +0000

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'}

Wed, 21 Jan 2026 11:30:00 +0000

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

Tue, 20 Jan 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Tue, 20 Jan 2026 14:00:00 +0000

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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Rockwell

Published:

Updated: 2026-01-20T16:01:58.321Z

Reserved: 2025-08-25T14:52:39.948Z

Link: CVE-2025-9464

cve-icon Vulnrichment

Updated: 2026-01-20T15:58:39.244Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-20T14:16:15.173

Modified: 2026-02-02T18:08:48.220

Link: CVE-2025-9464

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-21T11:19:20Z

Weaknesses