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CVE-2026-54800
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.
6.3 MEDIUMEPSS 0.22%Not in KEVNVD: Awaiting Analysis
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 6.3 | MEDIUM | 4.0siemens (CNA) | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N |
| 4.8 | MEDIUM | 3.1siemens (CNA) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |
Details
- CVE ID
- CVE-2026-54800
- Status
- Awaiting Analysis
- Assigner (CNA)
- siemens
- Published
- Jul 9, 2026
- Last modified
- 2026-10-23 23:10 UTC
- Weaknesses
- CWE-1188 · Initialization of a Resource with an Insecure Default
Affected Products
As published by the CNA in the CVE record.
SiemensCPCI85 Central Processing/Communication1 version range
- before V26.20
SiemensSICORE Base system1 version range
- before V26.20.0