Arbitrary file upload in Siemens Tia Project-server
CVE-2025-27127
A vulnerability has been identified in TIA Project-Server (All versions < V2.1.1), TIA Project-Server V17 (All versions), Totally Integrated Automation Portal (TIA Portal) V17 (All versions), Totally Integrated Automation Portal (TIA Porta…
Vulnerability class: Unrestricted File Upload
EPSS: 0.003 (51.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C.
Affected products
- Siemens Tia Project-server — versions 0
- Siemens Tia Project-server V17 — versions 0
- Siemens Totally Integrated Automation Portal (Tia Portal) V17 — versions 0
- Siemens Totally Integrated Automation Portal (Tia Portal) V18 — versions 0
- Siemens Totally Integrated Automation Portal (Tia Portal) V19 — versions 0
- Siemens Totally Integrated Automation Portal (Tia Portal) V20 — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-27127?
- CVE-2025-27127 is a medium-severity vulnerability in Siemens Tia Project-server, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 4.3/10. Published 2025-07-08.
- How severe is CVE-2025-27127?
- Medium severity. CVSS v3 base score is 4.3 out of 10.