CVE-2025-9465: 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, 08:30 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 42% 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
1. Monitor network traffic for unusual or unauthorized execution of Achilles Comprehensive grammar tests to detect potential exploitation attempts. 2. Implement strict network segmentation to isolate ArmorStart® LT devices from untrusted networks and limit access to only authorized personnel and systems. 3. Apply strict firewall rules and intrusion detection/prevention systems (IDS/IPS) to block or alert on suspicious packets targeting ArmorStart® LT devices. 4. Coordinate with Rockwell Automation for timely updates and patches; prioritize upgrading ArmorStart® LT to versions above V2.002 once a patch is available. 5. Conduct regular device and network audits to ensure no unauthorized changes or test executions occur. 6. Develop incident response plans specific to industrial control system disruptions, including fallback procedures during device reboots or monitoring outages. 7. Educate operational technology (OT) staff about this vulnerability and signs of exploitation to enhance early detection and response.
Description
A 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.