CVE-2025-9278
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. After running a Burp Suite active scan, the device loses ICMP connectivity, causing the web application to become inaccessible.
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 confidenceArmorStart LT web application contains a vulnerability that can be triggered by automated scanning tools like Burp Suite, causing the device to lose ICMP connectivity and rendering the web interface inaccessible, resulting in a denial-of-service condition.
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 ArmorStart LT device on the networkCheck network inventory or physically locate devices labeled as Rockwell Automation ArmorStart LT, or identify via device discovery/asset inventory noting the manufacturer and modelAffected if Device is not an ArmorStart LT product - this CVE does not apply
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Check ArmorStart LT firmware versionAccess the device web interface and navigate to the firmware/version information page, or use the device's serial console to query the firmware version command if availableAffected if Firmware version is 2.002 or lower (versions <= 2.002 are affected)
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Verify web interface is enabledAttempt to access the device HTTP/HTTPS web interface on the configured port (typically 80/443) from an authorized management hostAffected if Web interface is disabled or not configured - the DoS trigger requires web interface access
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Assess web interface network exposureReview firewall rules and network segments to determine if the ArmorStart LT web interface is accessible from untrusted networks or directly from corporate LAN without filteringAffected if Web interface is exposed to untrusted networks or scanning tools - this is the attack vector for the DoS condition
You are affected if you have an ArmorStart LT device running firmware version 2.002 or lower with its web interface accessible to networks where automated scanning tools could be run.
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 dataIsolate the ArmorStart LT device behind a firewall restricting web interface access to authorized personnel only; contact the vendor for firmware updates addressing this DoS vulnerability.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-9278 — 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-2025-9278 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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