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[ CVE-2026-72895 · Published 13 Oct 2026 ]

Vulnerability in Siemens SIMATIC IPC BX-21A

CVSS 7.7 EPSS <1%2 agency advisoriesNo fix listed yet

[ Description ]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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

  • NCSC-NLNCSC-2026-0415

    Vulnerabilities fixed in Siemens products Translated from Dutch

    Probability/damage M/HCVE-2024-7322CVE-2025-6965CVE-2025-70873+38 more CVEs
  • CERT-FRCERTFR-2026-AVI-1298

    Multiple vulnerabilities in Siemens products Translated from French

    Multiple vulnerabilities have been discovered in Siemens products. Some of them allow an attacker to cause remote arbitrary code execution, privilege escalation and remote denial of service.

    CVE-2021-41617CVE-2023-28531CVE-2023-51384+716 more CVEs

[ References ]References