CPCI85/SICORE Base Firmware Update Signature Validation Flaw (<V26.20)
CVE-2026-54799 Published on July 9, 2026
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.
Weakness Type
Active Debug Code
The application is deployed to unauthorized actors with debugging code still enabled or active, which can create unintended entry points or expose sensitive information. A common development practice is to add "back door" code specifically designed for debugging or testing purposes that is not intended to be shipped or deployed with the application. These back door entry points create security risks because they are not considered during design or testing and fall outside of the expected operating conditions of the application.
Affected Versions
Siemens CPCI85 Central Processing/Communication:- Before V26.20 is affected.
- Before V26.20.0 is affected.