ICSA-25-044-01: Siemens SIMATIC S7-1200 CPU Family
CISA advisory · released 2025-02-11
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 2, 2025-05-06 (final)
CISA's summary
Summary: SIMATIC S7-1200 CPU family before V4.7 is affected by two denial of service vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | SIMATIC S7-1200 CPU 1211C AC/DC/Rly (6ES7211-1BE40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1211C DC/DC/DC (6ES7211-1AE40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1211C DC/DC/Rly (6ES7211-1HE40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1212C AC/DC/Rly (6ES7212-1BE40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1212C DC/DC/DC (6ES7212-1AE40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1212C DC/DC/Rly (6ES7212-1HE40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1212FC DC/DC/DC (6ES7212-1AF40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1212FC DC/DC/Rly (6ES7212-1HF40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1214C AC/DC/Rly (6ES7214-1BG40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1214C DC/DC/DC (6ES7214-1AG40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1214C DC/DC/Rly (6ES7214-1HG40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1214FC DC/DC/DC (6ES7214-1AF40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1214FC DC/DC/Rly (6ES7214-1HF40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1215C AC/DC/Rly (6ES7215-1BG40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1215C DC/DC/DC (6ES7215-1AG40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1215C DC/DC/Rly (6ES7215-1HG40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1215FC DC/DC/DC (6ES7215-1AF40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1215FC DC/DC/Rly (6ES7215-1HF40-0XB0) | <V4.7 |
| Siemens | SIMATIC S7-1200 CPU 1217C DC/DC/DC (6ES7217-1AG40-0XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1212 AC/DC/RLY (6AG1212-1BE40-2XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1212 AC/DC/RLY (6AG1212-1BE40-4XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1212 DC/DC/RLY (6AG1212-1HE40-2XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1212 DC/DC/RLY (6AG1212-1HE40-4XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1212C DC/DC/DC (6AG1212-1AE40-2XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1212C DC/DC/DC (6AG1212-1AE40-4XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1212C DC/DC/DC RAIL (6AG2212-1AE40-1XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1214 AC/DC/RLY (6AG1214-1BG40-2XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1214 AC/DC/RLY (6AG1214-1BG40-4XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1214 AC/DC/RLY (6AG1214-1BG40-5XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1214 DC/DC/DC (6AG1214-1AG40-2XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1214 DC/DC/DC (6AG1214-1AG40-4XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1214 DC/DC/DC (6AG1214-1AG40-5XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1214 DC/DC/RLY (6AG1214-1HG40-2XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1214 DC/DC/RLY (6AG1214-1HG40-4XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1214 DC/DC/RLY (6AG1214-1HG40-5XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1214C DC/DC/DC RAIL (6AG2214-1AG40-1XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1214FC DC/DC/DC (6AG1214-1AF40-5XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1214FC DC/DC/RLY (6AG1214-1HF40-5XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1215 AC/DC/RLY (6AG1215-1BG40-2XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1215 AC/DC/RLY (6AG1215-1BG40-4XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1215 AC/DC/RLY (6AG1215-1BG40-5XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1215 DC/DC/DC (6AG1215-1AG40-2XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1215 DC/DC/DC (6AG1215-1AG40-4XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1215 DC/DC/RLY (6AG1215-1HG40-2XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1215 DC/DC/RLY (6AG1215-1HG40-4XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1215 DC/DC/RLY (6AG1215-1HG40-5XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1215C DC/DC/DC (6AG1215-1AG40-5XB0) | <V4.7 |
| Siemens | SIPLUS S7-1200 CPU 1215FC DC/DC/DC (6AG1215-1AF40-5XB0) | <V4.7 |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2025-24811 — CVE-2025-24811 · CWE-404
Affected devices do not process correctly certain special crafted packets sent to port 80/tcp, which could allow an unauthenticated attacker to cause a denial of service in the device.
- CVE-2025-24812 — CVE-2025-24812 · CWE-1286
Affected devices do not process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.
Acknowledgments, as the advisory lists them
- Gao Jian: reporting these vulnerabilities to Siemens.
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.
This product uses the NVD API but is not endorsed or certified by the NVD.
CVE records: Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.
CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.
CISA's Known Exploited Vulnerabilities catalog and CISA Vulnrichment data are CC0 1.0. CISA advisories are shown with the TLP label their document carries. No endorsement by CISA, DHS, NIST or MITRE is stated or implied.