What’s Vulnerable › Vulnerabilities
CVE-2026-72895
- Severity: high (CVSS 7.7 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-13 · updated 2026-10-15
- Weakness: CWE-1394
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
- Siemens SIMATIC IPC227G / IPC277G / IPC277G PRO / IPC327G / IPC377G: before V28.01.15 — fixed in V28.01.15
- Siemens SIMATIC IPC BX-21A: before V31.01.13 — fixed in V31.01.13
- Siemens SIMATIC IPC RW-543A: before V1.1.4 — fixed in V1.1.4
How to fix
Upgrade to a fixed version: Siemens SIMATIC IPC227G / IPC277G / IPC277G PRO / IPC327G / IPC377G V28.01.15; Siemens SIMATIC IPC BX-21A V31.01.13; Siemens SIMATIC IPC RW-543A V1.1.4. Check the vendor advisory for mitigations.
References
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