CVE-2026-72895 SIMATIC IPC - Authentication Bypass

SIMATIC IPC BX-21A < V31.01.13, IPC RW-543A < V1.1.4, IPC227G/IPC277G/IPC277G PRO/IPC327G/IPC377G < V28.01.15 contain a UEFI Secure Boot bypass caused by presence of BIOS vendor test key in the Secure Boot key database, letting local attackers with physical or administrative access bypass Secure Boot protections, exploit requires local physical or administrative access.

CVSS base score 7.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.14% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Privilege Escalation, Denial Of Service, Information Disclosure, Data Tampering
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Published
13 October 2026
Updated
15 October 2026
Weakness
CWE-1394

Vendor fix

Update to versions V31.01.13, V1.1.4, V28.01.15 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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