SIMATIC IPC Secure Boot Bypass via Test Key (V<31.01.13)
CVE-2026-72895 Published on October 13, 2026
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.
Weakness Type
CWE-1394
Affected Versions
Siemens SIMATIC IPC BX-21A:- Before V31.01.13 is affected.
- Before V1.1.4 is affected.
- Before V28.01.15 is affected.