CVE-2025-9465
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles Comprehensive grammar tests, the device reboots unexpectedly, causing the Link State Monitor to go down for several seconds.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA vulnerability in Rockwell Automation's ArmorStart® LT motor starter allows remote attackers to cause a denial-of-service condition by sending specially crafted network packets during Achilles Comprehensive grammar tests. The device unexpectedly reboots, causing the Link State Monitor to go down for several seconds.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 2.002CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the device modelLocate the ArmorStart LT motor starter physically or via network discovery and confirm the model number matches the affected product lineAffected if The device is not an ArmorStart LT unit
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Check the installed firmware versionAccess the device's web interface, console, or use Rockwell's software tools (such as RSLinx or FactoryTalk) to retrieve the current firmware version. Compare it against the affected version range <= 2.002Affected if Firmware version is 2.002 or lower
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Verify network accessibility of the deviceDetermine if the ArmorStart LT is directly accessible from network segments that contain untrusted devices or the internet. Use network scanning to identify exposed IP addresses and open ports associated with industrial protocolsAffected if Device is exposed on accessible network segments without segmentation
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Check if Achilles protocol testing features are enabledReview the device configuration for any enabled protocol testing or diagnostic features, specifically Achilles Comprehensive grammar test functionality. Consult the device documentation or network configuration to identify if these test features are activeAffected if Achilles protocol testing or diagnostic features are enabled and accessible
The environment is affected if an ArmorStart LT device with firmware version 2.002 or lower is accessible on the network with Achilles protocol testing features enabled or exposed to untrusted network segments.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement network segmentation to isolate industrial devices from untrusted networks and restrict access to protocol testing tools. Contact Rockwell Automation for firmware updates addressing this vulnerability.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-9465 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-9465 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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