CVE-2011-20001
Published: Oct 14, 2025
Modified: Oct 14, 2025
CVSS v3.1
7.5
Description
A vulnerability has been identified in SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) (All versions < V2.0.3), SIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants) (All versions < V2.0.3). The web server interface of affected devices improperly processes incoming malformed HTTP traffic at high rate. This could allow an unauthenticated remote attacker to force the device entering the stop/defect state, thus creating a denial of service condition.
| Vendor | Product | Versions |
|---|---|---|
Siemens | SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) | affected 0 - < V2.0.3 |
Siemens | SIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants) | affected 0 - < V2.0.3 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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