Affects Siemens SIMATIC IPC industrial PCs used across manufacturing/energy/transport sectors; Secure Boot bypass can enable full device compromise and operational disruption.
CVE-2026-72895
UEFI Secure Boot bypass via vendor test key in Siemens SIMATIC IPC series
Is CVE-2026-72895 being exploited?
Not confirmed. CVE-2026-72895 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.14% probability of exploitation in the next 30 days.
How severe is CVE-2026-72895?
CVE-2026-72895 is rated High with a CVSS score of 8.4. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-72895?
Yes. A fix has been recorded for CVE-2026-72895. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-72895 affect?
CVE-2026-72895 affects 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). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-72895?
Install vendor firmware updates, restrict physical/admin access, validate Secure Boot key DB.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local admin or physical attacker can boot OS/UEFI apps signed with test key, bypass Secure Boot and achieve full device compromise.
Immediate action required
- affected< V28.01.15
- affected< V31.01.13
- affected< V1.1.4
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.