Critical severity · published May 21, 2025
CVE-2025-36535
AutomationDirect MB-Gateway Missing Authentication for Critical Function
10.0
CVSS
1.2%
EPSS
No
On KEV
Description
The embedded web server lacks authentication and access controls, allowing unrestricted remote access. This could lead to configuration changes, operational disruption, or arbitrary code execution depending on the environment and exposed functionality.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MB
MB-Gateway · AutomationDirect
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-36535
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-36535
www.automationdirect.com
https://www.automationdirect.com/adc/shopping/catalog/communications/protocol_gateways/modbus_gateways/eki-1221-ce
www.cisa.gov
https://www.cisa.gov/news-events/ics-advisories/icsa-25-140-09