PT-2026-56806 · Siemens · Cpci85 Central Processing/Communication+1

Published 2026-07-09 · Updated 2026-07-09 · CVE-2026-54800

Mitre

CVSS v3.1

4.8

Medium

Base vector

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

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.

Fix

Weakness Enumeration

CWE-1188

Related Identifiers

CVE-2026-54800

Affected Products

Cpci85 Central Processing/Communication

Sicore Base System

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-54800 · Security Note
• https://cert-portal.siemens.com/productcert/html/ssa-229470.html · Note