CVE-2026-54800

MEDIUM

Siemens CPCI85 Central Processing/Communication - Initialization of a Resource with an Insecure Default

Title source: rule
STIX 2.1

Description

A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.20), SICORE Base system (All versions < V26.20.0). The affected application ships with a default configuration that disables all OPC UA security mechanisms. This could allow an attacker to gain unauthorized access and control over critical system functions.

References (1)

Core 1

Scores

CVSS v3 4.8
EPSS 0.0015
EPSS Percentile 4.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-1188
Status published
Products (2)
Siemens/CPCI85 Central Processing/Communication < V26.20
Siemens/SICORE Base system < V26.20.0
Published Jul 09, 2026
Tracked Since Jul 09, 2026