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4 vulnerabilities found for SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) by Siemens

CVE-2011-20002 (GCVE-0-2011-20002)

Vulnerability from cvelistv5 – Published: 2025-10-14 09:14 – Updated: 2025-10-14 18:58
VLAI?
Summary
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.
Severity ?
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
8.3 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-294 - Authentication Bypass by Capture-replay
Assigner
References
Impacted products
Vendor Product Version
Siemens SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) Affected: 0 , < V2.0.2 (custom)
Create a notification for this product.
Show details on NVD website
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CVE-2011-20001 (GCVE-0-2011-20001)

Vulnerability from cvelistv5 – Published: 2025-10-14 09:14 – Updated: 2025-10-14 18:57
VLAI?
Summary
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.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
Siemens SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) Affected: 0 , < V2.0.3 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2011-20002 (GCVE-0-2011-20002)

Vulnerability from nvd – Published: 2025-10-14 09:14 – Updated: 2025-10-14 18:58
VLAI?
Summary
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.
Severity ?
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
8.3 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-294 - Authentication Bypass by Capture-replay
Assigner
References
Impacted products
Vendor Product Version
Siemens SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) Affected: 0 , < V2.0.2 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2011-20001 (GCVE-0-2011-20001)

Vulnerability from nvd – Published: 2025-10-14 09:14 – Updated: 2025-10-14 18:57
VLAI?
Summary
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.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
Siemens SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) Affected: 0 , < V2.0.3 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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