CVE-2025-9464: Rockwell Automation ArmorStart® LT · Uncontrolled Resource Consumption
Affects Rockwell Automation ArmorStart® LTSource CVE Database V5
Not known to be exploited · CVSS 8.7 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 20 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Rockwell AutomationArmorStart® LT | Affected
| Fixed in– |
AI-suggested
- Network Segmentation: Isolate ArmorStart® LT devices on dedicated network segments with strict access controls to limit exposure to untrusted networks.
- Access Control: Restrict access to CIP ports using firewalls or industrial protocol-aware intrusion prevention systems to allow only trusted management stations or controllers.
- Traffic Monitoring: Implement continuous monitoring of CIP traffic for anomalous patterns or fuzzing attempts that could indicate exploitation attempts.
- Vendor Coordination: Engage with Rockwell Automation for updates and patches; apply security patches promptly once released.
- Incident Response Planning: Develop and test response plans for DoS scenarios affecting industrial control devices to minimize downtime.
- Device Hardening: Disable unused CIP classes or services on ArmorStart® LT devices to reduce the attack surface.
- Network Anomaly Detection: Deploy specialized industrial network anomaly detection tools to identify unusual CIP traffic that could precede exploitation. These measures go beyond generic advice by focusing on network-level controls and proactive monitoring tailored to industrial protocols and environments.
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.