High severity · published Aug 13, 2025
CVE-2025-8754
ABB AbilityTM zenon Remote Transport Vulnerability
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
Missing Authentication for Critical Function vulnerability in ABB ABB AbilityTM zenon.This issue affects ABB AbilityTM zenon: from 7.50 through 14.
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)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
ABB AbilityTM zenon · ABB
7.50 through 14 · source: vendor
In the news
VulnerabilityHigh
ABB AbilityTM Zenon Remote Transport Vulnerability
View CSAF
Summary
ABB is aware of vulnerabilities in the product versions listed as affected in the advisory. The vulnerability enables unauthorized access to the Reboot OS function within the Remote Transport Service, allowing an attacker to trigger a system reboot without the required authentication. This functionality initiates a system reboot on the target machine. However, remote exploitation of this vulnerability is not feasible unless the attacker has already gained access to the network where the affected ABB Ability™ zenon system is deployed. At the time of writing, there is no evidence that this vulnerability is being actively exploited in the wild.
The following versions of ABB AbilityTM Zenon Remote Transport Vulnerability are affected:
AbilityTM zenon >=7.50|<=14
CVSS
Vendor
Equipment
Vulnerabilities
v3 7.5
ABB
ABB AbilityTM Zenon Remote Transport Vulnerability
Missing Authentication for Critical Function
Background
Critical Infrastructure Sectors: Chemical, Communications, Critical Manufacturing, Dams, Energy, Healthcare and Public Health, Information Technology, Water and Wastewater
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Switzerland
Vulnerabilities
Expand All +
CVE-2025-8754
In the default configuration of the ABB zenon software platform, the zensyssrv.exe service is set to start automatically. To utilize the Remote Transport Service, ...
May 26, 2026·CISA Advisories
