CVE-2026-54799

State: Published
Severity: 8.4 High
Published: Jul 9, 2026
Updated: Jul 9, 2026
Reserved: Jun 16, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	8.4 High	CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	siemens
3.1	6.7 Medium	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	siemens

Weaknesses

CWE-489 Active Debug Code

Affected Products

Product	Versions
CPCI85 Central Processing/CommunicationSiemens	before V26.20Affected
SICORE Base systemSiemens	before V26.20.0Affected

References

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

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