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CVE-2011-20002

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CVE-2011-20002

Published: Oct 14, 2025

Modified: Oct 14, 2025

PUBLISHED

CVSS v3.1

7.4

HIGH

Description

A vulnerability has been identified in SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) (All versions < V2.0.2), SIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants) (All versions < V2.0.2). Affected controllers are vulnerable to capture-replay in the communication with the engineering software. This could allow an on-path attacker between the engineering software and the controller to execute any previously recorded commands at a later time (e.g. set the controller to STOP), regardless whether or not the controller had a password configured.

VendorProductVersions

Siemens

SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants)

affected
0 - < V2.0.2

Siemens

SIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants)

affected
0 - < V2.0.2

Weaknesses (CWE)

CWE-294

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

References

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