Vulnerability · Published Jul 9, 2026 · Assigned by siemens
CVE-2026-54799
Medium 6.7
In plain English
A medium-severity security flaw in CPCI85 Central Processing/Communication from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | CPCI85 Central Processing/Communication | 0 – before V26.20 |
| Siemens | SICORE Base system | 0 – before V26.20.0 |
Weakness: CWE-489 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H