ICSA-21-194-17: Siemens SINUMERIK ONE and SINUMERIK MC (Update A)
CISA advisory · released 2021-07-13
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 3, 2025-05-06 (final)
CISA's summary
Summary: SINUMERIK ONE and SINUMERIK MC products are affected by a memory protection bypass vulnerability in the integrated S7-1500 CPU that could allow an attacker to write arbitrary data and code to protected memory areas or read sensitive data to launch further attacks on the CPU. Siemens has released updates for the affected products and recommends that customers update to the new version.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | SINUMERIK MC | <V6.15 |
| Siemens | SINUMERIK ONE | <V6.15 |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2020-15782 — CVE-2020-15782 · CWE-119
Affected devices are vulnerable to a memory protection bypass through a specific operation. A remote unauthenticated attacker with network access to port 102/tcp could potentially write arbitrary data and code to protected memory areas or read sensitive data to launch further attacks.
Acknowledgments, as the advisory lists them
- Siemens ProductCERT: reporting this vulnerability to CISA.
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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