CVE-2026-54801

Published Jul 9, 2026 CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed
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 insufficient validation of authentication credentials when processing administrative account modifications through the web API. This could allow an authenticated attacker to bypass security controls and gain unauthorized elevated privileges.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Authenticated Privilege Escalation via Web API in Siemens CPCI85 and SICORE Base Systems
Type Values Removed Values Added
Title Authenticated Privilege Escalation via Web API in Siemens CPCI85 and SICORE Base Systems
Type Values Removed Values Added
Title Web API Authentication Validation Flaw Allowing Privilege Escalation in Siemens CPCI85 and SICORE Base
Type Values Removed Values Added
Title Web API Authentication Validation Flaw Allowing Privilege Escalation in Siemens CPCI85 and SICORE Base
Type Values Removed Values Added
Title Authentication Bypass via Web API in Siemens CPCI85 and SICORE Base Systems
Type Values Removed Values Added
Title Authentication Bypass via Web API in Siemens CPCI85 and SICORE Base Systems
Type Values Removed Values Added
Title Insufficient Authentication Validation in Siemens CPCI85 and SICORE Base Systems Enables Privilege Escalation via Web API
Type Values Removed Values Added
Title Insufficient Authentication Validation in Siemens CPCI85 and SICORE Base Systems Enables Privilege Escalation via Web API
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Siemens
Siemens cpci85 Central Processing\/communication
Siemens sicore Base System
Vendors & Products Siemens
Siemens cpci85 Central Processing\/communication
Siemens sicore Base System
Type Values Removed Values Added
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 insufficient validation of authentication credentials when processing administrative account modifications through the web API. This could allow an authenticated attacker to bypass security controls and gain unauthorized elevated privileges.
Weaknesses CWE-620
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
siemens
Published
Updated
Jul 9, 2026, 5:37 PM
Reserved
Jun 16, 2026, 7:47 AM
Status
Awaiting Analysis
Published
Jul 9, 2026, 3:16 PM
Modified
Oct 24, 2026, 1:10 PM