CVE-2026-72895 — Siemens / SIMATIC IPC BX-21A

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Siemens / SIMATIC IPC BX-21A	affected 0 before V31.01.13
Siemens / SIMATIC IPC RW-543A	affected 0 before V1.1.4
Siemens / SIMATIC IPC227G / IPC277G / IPC277G PRO / IPC327G / IPC377G	affected 0 before V28.01.15

CWE

CWE-1394

References

https://cert-portal.siemens.com/productcert/html/ssa-159454.html

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.