High severity · published Jan 20, 2026
CVE-2025-9280
ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. Fuzzing performed using Defensics causes the device to become unresponsive, requiring a reboot.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AL
ArmorStart® LT · Rockwell Automation
V2.002 and below · source: vendor
AL
Armorstart LT Firmware · Rockwellautomation
through 2.002 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-9280
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-9280
Vendor Advisory
https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1768.html
More from ArmorStart® LT
8.7
CVE-2026-19472
Rockwell Automation ArmorStart® LT Denial Of Service
7.5
CVE-2025-9283
ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities
7.5
CVE-2025-9282
ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities
7.5
CVE-2025-9281
ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities
7.5
CVE-2025-9279
ArmorStart® LT - Multiple Denial-of-Service Vulnerabilities