CVE-2026-54799: CWE-489: Active Debug Code in Siemens CPCI85 Central Processing/Communication
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-54799) in Siemens CPCI85 Central Processing/Communication and SICORE Base system firmware prior to version V26.20 is due to improper signature validation in the firmware update mechanism. An attacker with local access and high privileges could exploit this to install malicious firmware, resulting in persistent code execution and compromise of the affected system. The CVSS 3.1 base score is 6.7, reflecting a medium severity with high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available.
Potential Impact
An attacker with local access and high privileges could bypass firmware signature validation to install malicious firmware. This leads to persistent code execution, potentially compromising system confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict local access and ensure only trusted personnel can perform firmware updates.
CVE-2026-54799: CWE-489: Active Debug Code in Siemens CPCI85 Central Processing/Communication
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.
CVSS v3.1
Score 6.7medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-54799) in Siemens CPCI85 Central Processing/Communication and SICORE Base system firmware prior to version V26.20 is due to improper signature validation in the firmware update mechanism. An attacker with local access and high privileges could exploit this to install malicious firmware, resulting in persistent code execution and compromise of the affected system. The CVSS 3.1 base score is 6.7, reflecting a medium severity with high impact on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available.
Potential Impact
An attacker with local access and high privileges could bypass firmware signature validation to install malicious firmware. This leads to persistent code execution, potentially compromising system confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict local access and ensure only trusted personnel can perform firmware updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- siemens
- Date Reserved
- 2026-06-16T07:47:12.273Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4fb12f68715ace43893252
Added to database: 07/09/2026, 14:33:19 UTC
Last enriched: 07/09/2026, 14:47:59 UTC
Last updated: 07/09/2026, 15:33:27 UTC
Views: 4
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