Vulnerability · Published Oct 13, 2026 · Assigned by siemens
CVE-2026-72895
High 7.7
In plain English
A high-severity security flaw in SIMATIC IPC BX-21A from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).
Official description
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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SIMATIC IPC BX-21A | 0 – before V31.01.13 |
| Siemens | SIMATIC IPC RW-543A | 0 – before V1.1.4 |
| Siemens | SIMATIC IPC227G / IPC277G / IPC277G PRO / IPC327G / IPC377G | 0 – before V28.01.15 |
Weakness: CWE-1394 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H