High severity · published Sep 9, 2025
CVE-2025-9161
A security issue exists within FactoryTalk Optix MQTT broker due to the lack of URI sanitization
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
A security issue exists within FactoryTalk Optix MQTT broker due to the lack of URI sanitization. This flaw enables the loading of remote Mosquito plugins, which can be used to achieve remote code execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Factorytalk Optix · Rockwellautomation
1.5.0 before 1.6.0 · source: NVD