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Mallory
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DoS in Rockwell Automation ArmorStart LT (Burp Suite active scan triggers loss of ICMP/web access)

IdentifiersCVE-2025-9278CWE-400· Uncontrolled Resource Consumption

A denial-of-service vulnerability in Rockwell Automation ArmorStart® LT where network-based scanning activity (specifically a Burp Suite active scan) can trigger uncontrolled resource consumption, resulting in the device losing ICMP connectivity and the embedded web application becoming inaccessible.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Remote denial of service against the ArmorStart® LT device: loss of ICMP reachability and unavailability of the device’s web application/management interface. Reported scoring indicates availability impact only (no confidentiality or integrity impact).

Mitigation

If you can’t patch tonight, do this now.

Minimize network exposure of ArmorStart LT devices; ensure they are not internet-accessible; place control system networks/devices behind firewalls and isolate them from business networks; use secure remote access (e.g., VPN) and keep remote-access components updated; perform impact analysis/risk assessment before applying changes.

Remediation

Patch, then assume compromise.

Information currently not available in the provided content (no specific fixed version or patch guidance included).
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Rockwell AutomationArmorstart Lt Firmwareoperating_system

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What this page doesn’t show

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Exposure mapping

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Threat actor evidence

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Associated malware

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Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity2

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