Detections
Analytics

COPA-DATA zenon Remote Transport Service Missing Authentication for Critical Function (CVE-2025-8754)

high Nessus Plugin ID 351117

Synopsis

An OT application is missing authentication for critical functions.

Description

The COPA-DATA zenon Remote Transport Service running on the remote host is affected by a vulnerability involving missing authentication for critical functions. An unauthenticated remote attacker could exploit this, via a specially crafted message, to restart the remote OS.

Solution

See vendor advisory.

See Also

https://www.cisa.gov/news-events/ics-advisories/icsa-26-146-03

http://www.nessus.org/u?e6fbcabe

Plugin Details

Severity: High

ID: 351117

File Name: copadata_zenon_cve-2025-8754.nbin

Version: 1.2

Type: Remote

Family: SCADA

Published: 9/29/2026

Updated: 9/30/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2025-8754

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:copadata:zenon

Required KB Items: installed_sw/COPA-DATA zenon Remote Transport Service

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 8/13/2025

Vulnerability Publication Date: 8/13/2025

Reference Information

CVE: CVE-2025-8754

CWE: 306