ICSA-25-191-05: Siemens TIA Project-Server and TIA Portal
CISA advisory · released 2025-07-08
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 2, 2025-08-12 (final)
CISA's summary
Summary: A vulnerability in TIA Project Server and TIA Portal could allow an attacker to cause a denial of service condition. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | TIA Project-Server | vers:intdot/<2.1.1 |
| Siemens | TIA Project-Server V17 | vers:all/* |
| Siemens | Totally Integrated Automation Portal (TIA Portal) V17 | vers:all/* |
| Siemens | Totally Integrated Automation Portal (TIA Portal) V18 | vers:all/* |
| Siemens | Totally Integrated Automation Portal (TIA Portal) V19 | <V19_Update_4 |
| Siemens | Totally Integrated Automation Portal (TIA Portal) V20 | <V20_Update_3 |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2025-27127 — CVE-2025-27127 · CWE-434
The affected application improperly handles uploaded projects in the document root. This could allow an attacker with contributor privileges to cause denial of service by uploading a malicious project.
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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