ICSA-20-105-08: Siemens KTK, SIDOOR, SIMATIC, and SINAMICS (Update D)
CISA advisory · released 2020-04-14
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 16, 2025-07-08 (final)
CISA's summary
Summary: A vulnerability exists in affected products that could allow remote attackers to affect the availability of the devices under certain conditions. The underlying TCP stack can be forced to make very computation expensive calls for every incoming packet which can lead to a Denial-of-Service. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens recommends countermeasures for products where fixes are not, or not yet available.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200 | vers:all/* |
| Siemens | Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200P | vers:all/* |
| Siemens | KTK ATE530S | vers:all/* |
| Siemens | SIDOOR ATD430W | vers:all/* |
| Siemens | SIDOOR ATE530S COATED | vers:all/* |
| Siemens | SIDOOR ATE531S | vers:all/* |
| Siemens | SIMATIC ET 200AL IM 157-1 PN (6ES7157-1AB00-0AB0) | vers:all/* |
| Siemens | SIMATIC ET 200eco PN, AI 8xRTD/TC, M12-L (6ES7144-6JF00-0BB0) | vers:all/>=V5.1.1|<V5.1.2 |
| Siemens | SIMATIC ET 200eco PN, CM 4x IO-Link, M12-L (6ES7148-6JE00-0BB0) | vers:all/>=V5.1.1|<V5.1.2 |
| Siemens | SIMATIC ET 200eco PN, CM 8x IO-Link, M12-L (6ES7148-6JG00-0BB0) | vers:all/>=V5.1.1|<V5.1.2 |
| Siemens | SIMATIC ET 200eco PN, CM 8x IO-Link, M12-L (6ES7148-6JJ00-0BB0) | vers:all/>=V5.1.1|<V5.1.2 |
| Siemens | SIMATIC ET 200eco PN, DI 8x24VDC, M12-L (6ES7141-6BG00-0BB0) | vers:all/>=V5.1.1|<V5.1.2 |
| Siemens | SIMATIC ET 200eco PN, DI 16x24VDC, M12-L (6ES7141-6BH00-0BB0) | vers:all/>=V5.1.1|<V5.1.2 |
| Siemens | SIMATIC ET 200eco PN, DIQ 16x24VDC/2A, M12-L (6ES7143-6BH00-0BB0) | vers:all/>=V5.1.1|<V5.1.3 |
| Siemens | SIMATIC ET 200eco PN, DQ 8x24VDC/0,5A, M12-L (6ES7142-6BG00-0BB0) | vers:all/>=V5.1.1|<V5.1.2 |
| Siemens | SIMATIC ET 200eco PN, DQ 8x24VDC/2A, M12-L (6ES7142-6BR00-0BB0) | vers:all/>=V5.1.1|<V5.1.2 |
| Siemens | SIMATIC ET 200MP IM 155-5 PN HF (6ES7155-5AA00-0AC0) | vers:all/>=V4.2.0 |
| Siemens | SIMATIC ET 200pro IM 154-8 PN/DP CPU (6ES7154-8AB01-0AB0) | vers:all/* |
| Siemens | SIMATIC ET 200pro IM 154-8F PN/DP CPU (6ES7154-8FB01-0AB0) | vers:all/* |
| Siemens | SIMATIC ET 200pro IM 154-8FX PN/DP CPU (6ES7154-8FX00-0AB0) | vers:all/* |
| Siemens | SIMATIC ET 200S IM 151-8 PN/DP CPU (6ES7151-8AB01-0AB0) | vers:all/* |
| Siemens | SIMATIC ET 200S IM 151-8F PN/DP CPU (6ES7151-8FB01-0AB0) | vers:all/* |
| Siemens | SIMATIC ET 200SP IM 155-6 MF HF (6ES7155-6MU00-0CN0) | vers:all/* |
| Siemens | SIMATIC ET 200SP IM 155-6 PN HA (incl. SIPLUS variants) | vers:all/* |
| Siemens | SIMATIC ET 200SP IM 155-6 PN HF (6ES7155-6AU00-0CN0) | vers:all/>=V4.2.0 |
| Siemens | SIMATIC ET 200SP IM 155-6 PN/2 HF (6ES7155-6AU01-0CN0) | vers:all/>=V4.2.0 |
| Siemens | SIMATIC ET 200SP IM 155-6 PN/3 HF (6ES7155-6AU30-0CN0) | vers:all/>=V4.2.0 |
| Siemens | SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) | vers:all/<V2.0 |
| Siemens | SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) | vers:all/<V2.0 |
| Siemens | SIMATIC MICRO-DRIVE PDC | vers:all/* |
| Siemens | SIMATIC PN/MF Coupler (6ES7158-3MU10-0XA0) | vers:all/* |
| Siemens | SIMATIC PN/PN Coupler (6ES7158-3AD10-0XA0) | vers:all/>=V4.2 |
| Siemens | SIMATIC S7-300 CPU 314C-2 PN/DP (6ES7314-6EH04-0AB0) | vers:all/* |
| Siemens | SIMATIC S7-300 CPU 315-2 PN/DP (6ES7315-2EH14-0AB0) | vers:all/* |
| Siemens | SIMATIC S7-300 CPU 315F-2 PN/DP (6ES7315-2FJ14-0AB0) | vers:all/* |
| Siemens | SIMATIC S7-300 CPU 315T-3 PN/DP (6ES7315-7TJ10-0AB0) | vers:all/* |
| Siemens | SIMATIC S7-300 CPU 317-2 PN/DP (6ES7317-2EK14-0AB0) | vers:all/* |
| Siemens | SIMATIC S7-300 CPU 317F-2 PN/DP (6ES7317-2FK14-0AB0) | vers:all/* |
| Siemens | SIMATIC S7-300 CPU 317T-3 PN/DP (6ES7317-7TK10-0AB0) | vers:all/* |
| Siemens | SIMATIC S7-300 CPU 317TF-3 PN/DP (6ES7317-7UL10-0AB0) | vers:all/* |
| Siemens | SIMATIC S7-300 CPU 319-3 PN/DP (6ES7318-3EL01-0AB0) | vers:all/* |
| Siemens | SIMATIC S7-300 CPU 319F-3 PN/DP (6ES7318-3FL01-0AB0) | vers:all/* |
| Siemens | SIMATIC S7-400 H V6 and below CPU family (incl. SIPLUS variants) | vers:all/* |
| Siemens | SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) | vers:all/* |
| Siemens | SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) | vers:all/<V8.3 |
| Siemens | SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) | vers:all/<V10.2 |
| Siemens | SIMATIC S7-1200 CPU family (incl. SIPLUS variants) | vers:all/<V4.4.0 |
| Siemens | SIMATIC S7-1500 CPU family (incl. related ET 200 CPUs and SIPLUS variants) | vers:all/<V2.0 |
| Siemens | SIMATIC S7-1500 Software Controller | vers:all/<V2.0 |
| Siemens | SIMATIC TDC CP51M1 | vers:all/* |
| Siemens | SIMATIC TDC CPU555 | vers:all/* |
| Siemens | SIMATIC WinAC RTX 2010 (6ES7671-0RC08-0YA0) | vers:all/* |
| Siemens | SIMATIC WinAC RTX F 2010 (6ES7671-1RC08-0YA0) | vers:all/* |
| Siemens | SINAMICS S/G Control Unit w. PROFINET | vers:all/* |
| Siemens | SIPLUS ET 200MP IM 155-5 PN HF (6AG1155-5AA00-2AC0) | vers:all/>=V4.2.0 |
| Siemens | SIPLUS ET 200MP IM 155-5 PN HF (6AG1155-5AA00-7AC0) | vers:all/>=V4.2.0 |
| Siemens | SIPLUS ET 200MP IM 155-5 PN HF T1 RAIL (6AG2155-5AA00-1AC0) | vers:all/>=V4.2.0 |
| Siemens | SIPLUS ET 200S IM 151-8 PN/DP CPU (6AG1151-8AB01-7AB0) | vers:all/* |
| Siemens | SIPLUS ET 200S IM 151-8F PN/DP CPU (6AG1151-8FB01-2AB0) | vers:all/* |
| Siemens | SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU00-2CN0) | vers:all/>=V4.2.0 |
| Siemens | SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU00-4CN0) | vers:all/>=V4.2.0 |
| Siemens | SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU01-2CN0) | vers:all/>=V4.2.0 |
| Siemens | SIPLUS ET 200SP IM 155-6 PN HF (6AG1155-6AU01-7CN0) | vers:all/>=V4.2.0 |
| Siemens | SIPLUS ET 200SP IM 155-6 PN HF T1 RAIL (6AG2155-6AU00-1CN0) | vers:all/>=V4.2.0 |
| Siemens | SIPLUS ET 200SP IM 155-6 PN HF T1 RAIL (6AG2155-6AU01-1CN0) | vers:all/>=V4.2.0 |
| Siemens | SIPLUS ET 200SP IM 155-6 PN HF TX RAIL (6AG2155-6AU01-4CN0) | vers:all/>=V4.2.0 |
| Siemens | SIPLUS NET PN/PN Coupler (6AG2158-3AD10-4XA0) | vers:all/>=V4.2 |
| Siemens | SIPLUS S7-300 CPU 314C-2 PN/DP (6AG1314-6EH04-7AB0) | vers:all/* |
| Siemens | SIPLUS S7-300 CPU 315-2 PN/DP (6AG1315-2EH14-7AB0) | vers:all/* |
| Siemens | SIPLUS S7-300 CPU 315F-2 PN/DP (6AG1315-2FJ14-2AB0) | vers:all/* |
| Siemens | SIPLUS S7-300 CPU 317-2 PN/DP (6AG1317-2EK14-7AB0) | vers:all/* |
| Siemens | SIPLUS S7-300 CPU 317F-2 PN/DP (6AG1317-2FK14-2AB0) | vers:all/* |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2019-19300 — CVE-2019-19300 · CWE-400
The Interniche-based TCP Stack can be forced to make very expensive calls for every incoming packet which can lead to a denial of service.
Acknowledgments, as the advisory lists them
- Siemens ProductCERT: reporting this vulnerability to CISA.
The advisory's legal notice
The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.
Sources
DeSpy's copy of this version is dated 2026-09-28.
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