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CVE-2026-54799

MEDIUM
6.7
CVSS Score
Published: July 9, 2026 at 02:15 PM UTC
Updated: October 24, 2026 at 01:10 PM UTC
2 products affected across 1 vendorCPCI85SICORE Base System

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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 contains a vulnerability in its firmware update mechanism's signature validation process. This could allow an attacker to install malicious firmware, leading to persistent code execution and system compromise.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

CPCI85· Siemens
90%
0 ≤ v < V26.200
Affected range stops below V26.20, so it looks safe — our inference, not a vendor statement
SICORE Base System· Siemens
90%
0 ≤ v < V26.20.00
Affected range stops below V26.20.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://cert-portal.siemens.com/productcert/html/ssa-229470.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.7MEDIUMsiemens
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-489

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