VulnerabilityAwaiting Analysis

CVE-2026-54799

A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.20), SICORE Base system (All versions < V26.20.0).

HIGH 8.4EPSS 0.18%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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 4.0: 8.4 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.18% probability · 8th percentile
CISA KEV: Not listed
Weakness: CWE-489
Source: productcert@siemens.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.