ICSA-20-070-02: Siemens SIMATIC S7-300 CPUs and SINUMERIK Controller over Profinet (Update A)
CISA advisory · released 2020-03-10
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 1, 2020-03-10 (final)
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | SIMATIC S7-300 CPU family (incl.'related ET200 CPUs and SIPLUS variants) | <V3.X.17 |
| Siemens | SIMATIC TDC CP51M1 | <V1.1.8 |
| Siemens | SIMATIC TDC CPU555 | <V1.1.1 |
| Siemens | SINUMERIK 840D sl | <V4.8.6 |
| Siemens | SINUMERIK 840D sl | <V4.94 |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2019-18336 — CVE-2019-18336 · CWE-400
Specially crafted packets sent to port 102/tcp (Profinet) could cause the affected device to go into defect mode. A restart is required in order to recover the system. Successful exploitation requires an attacker to have network access to port 102/tcp, with no authentication. No user interation is required. At the time of advisory publication no public exploitation of this security vulnerability was known.
Acknowledgments, as the advisory lists them
- Siemens ProductCERT: reporting this vulnerability to CISA.
- Peter Cheng, Elex Cybersecurity INC: for coordinating disclosure
- CNCERT/CC: for coordination efforts
The advisory's legal notice
Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.
Sources
DeSpy's copy of this version is dated 2026-09-28.
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