Vulnerability in Siemens Simatic Ipc227g / Ipc277g Pro Ipc327g Ipc377g

CVE-2026-72895

A vulnerability has been identified in SIMATIC IPC BX-21A (All versions < V31.01.13), SIMATIC IPC RW-543A (All versions < V1.1.4), SIMATIC IPC227G / IPC277G / IPC277G PRO / IPC327G / IPC377G (All versions < V28.01.15). A BIOS vendor test key is present in the UEFI Secure Boot key database. This could allow a local attacker with physical or administrative access to the device to boot an operating system or UEFI application signed with that test key, bypassing UEFI Secure Boot protections even when Secure Boot is enabled, potentially leading to a full loss of confidentiality, integrity, and availability of the device.

Published .

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-72895?
CVE-2026-72895 is a high-severity vulnerability in Siemens Simatic Ipc227g / Ipc277g Pro Ipc327g Ipc377g, classified under CWE-1394. CVSS score: 7.7/10. Published 2026-10-13.
How severe is CVE-2026-72895?
High severity. CVSS v3 base score is 7.7 out of 10.