CVE-2024-56181

Severity: high (CVSS 8.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-03-11 · updated 2026-09-08
Weakness: CWE-693

Description

A vulnerability has been identified in SIMATIC Field PG M5 (All versions), SIMATIC IPC BX-21A (All versions < V31.01.07), SIMATIC IPC BX-32A (All versions < V29.01.07), SIMATIC IPC BX-39A (All versions < V29.01.07), SIMATIC IPC BX-59A (All versions < V32.01.04), SIMATIC IPC PX-32A (All versions < V29.01.07), SIMATIC IPC PX-39A (All versions < V29.01.07), SIMATIC IPC PX-39A PRO (All versions < V29.01.07), SIMATIC IPC RC-543A (All versions < V36.01.03), SIMATIC IPC RC-543B (All versions < V35.01.12), SIMATIC IPC RW-543A (All versions < V1.1.4), SIMATIC IPC RW-543B (All versions < V35.02.10), SIMATIC IPC127E (All versions < V27.01.11), SIMATIC IPC227E (All versions), SIMATIC IPC227G (All versions < V28.01.14), SIMATIC IPC277E (All versions), SIMATIC IPC277G (All versions < V28.01.14), SIMATIC IPC277G PRO (All versions < V28.01.14), SIMATIC IPC3000 SMART V3 (All versions), SIMATIC IPC327G (All versions < V28.01.14), SIMATIC IPC347G (All versions), SIMATIC IPC377G (All versions < V28.01.14), SIMATIC IPC427E (All versions < V21.01.21), SIMATIC IPC477E (All versions < V21.01.21), SIMATIC IPC477E PRO (All versions < V21.01.21), SIMATIC IPC527G (All versions), SIMATIC IPC627E (All versions < V25.02.15), SIMATIC IPC647E (All versions < V25.02.15), SIMATIC IPC677E (All versions < V25.02.15), SIMATIC IPC847E (All versions < V25.02.15), SIMATIC ITP1000 (All versions). The affected devices have insufficient protection mechanism for the EFI(Extensible Firmware Interface) variables stored on the device. This could allow an authenticated attacker to alter the secure boot configuration without proper authorization by directly communicate with the flash controller.

Affected products

Siemens SIMATIC Field PG M5: all versions
Siemens SIMATIC IPC127E: before V27.01.11 — fixed in V27.01.11
Siemens SIMATIC IPC227E: all versions
Siemens SIMATIC IPC227G: before V28.01.14 — fixed in V28.01.14
Siemens SIMATIC IPC277E: all versions
Siemens SIMATIC IPC277G: before V28.01.14 — fixed in V28.01.14
Siemens SIMATIC IPC277G PRO: before V28.01.14 — fixed in V28.01.14
Siemens SIMATIC IPC3000 SMART V3: all versions
Siemens SIMATIC IPC327G: before V28.01.14 — fixed in V28.01.14
Siemens SIMATIC IPC347G: all versions
Siemens SIMATIC IPC377G: before V28.01.14 — fixed in V28.01.14
Siemens SIMATIC IPC427E: before V21.01.21 — fixed in V21.01.21
Siemens SIMATIC IPC477E: before V21.01.21 — fixed in V21.01.21
Siemens SIMATIC IPC477E PRO: before V21.01.21 — fixed in V21.01.21
Siemens SIMATIC IPC527G: all versions
Siemens SIMATIC IPC627E: before V25.02.15 — fixed in V25.02.15
Siemens SIMATIC IPC647E: before V25.02.15 — fixed in V25.02.15
Siemens SIMATIC IPC677E: before V25.02.15 — fixed in V25.02.15
Siemens SIMATIC IPC847E: before V25.02.15 — fixed in V25.02.15
Siemens SIMATIC IPC BX-21A: before V31.01.07 — fixed in V31.01.07
Siemens SIMATIC IPC BX-32A: before V29.01.07 — fixed in V29.01.07
Siemens SIMATIC IPC BX-39A: before V29.01.07 — fixed in V29.01.07
Siemens SIMATIC IPC BX-59A: before V32.01.04 — fixed in V32.01.04
Siemens SIMATIC IPC PX-32A: before V29.01.07 — fixed in V29.01.07
Siemens SIMATIC IPC PX-39A: before V29.01.07 — fixed in V29.01.07
Siemens SIMATIC IPC PX-39A PRO: before V29.01.07 — fixed in V29.01.07
Siemens SIMATIC IPC RC-543A: before V36.01.03 — fixed in V36.01.03
Siemens SIMATIC IPC RC-543B: before V35.01.12 — fixed in V35.01.12
Siemens SIMATIC IPC RW-543A: before V1.1.4 — fixed in V1.1.4
Siemens SIMATIC IPC RW-543B: before V35.02.10 — fixed in V35.02.10

How to fix

Upgrade to a fixed version: Siemens SIMATIC IPC127E V27.01.11; Siemens SIMATIC IPC227G V28.01.14; Siemens SIMATIC IPC277G V28.01.14; Siemens SIMATIC IPC277G PRO V28.01.14; Siemens SIMATIC IPC327G V28.01.14; Siemens SIMATIC IPC377G V28.01.14; Siemens SIMATIC IPC427E V21.01.21; Siemens SIMATIC IPC477E V21.01.21; Siemens SIMATIC IPC477E PRO V21.01.21; Siemens SIMATIC IPC627E V25.02.15; Siemens SIMATIC IPC647E V25.02.15; Siemens SIMATIC IPC677E V25.02.15. Check the vendor advisory for mitigations.

References

https://cert-portal.siemens.com/productcert/html/ssa-216014.html

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