CVE-2025-3940: Tridium Niagara

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper Use of Validation Framework vulnerability in Tridium Niagara Framework on Windows, Linux, QNX, Tridium Niagara Enterprise Security on Windows, Linux, QNX allows Input Data Manipulation. This issue affects Niagara Framework: before 4.14.2, before 4.15.1, before 4.10.11; Niagara Enterprise Security: before 4.14.2, before 4.15.1, before 4.10.11. Tridium recommends upgrading to Niagara Framework and Enterprise Security versions 4.14.2u2, 4.15.u1, or 4.10u.11.

Affected products

• Tridium Niagara: version 4.10u10 only; version 4.14u1 only; version 4.15 only
• Tridium Niagara Enterprise Security: version 4.10u10 only; version 4.14u1 only; version 4.15 only

Published 2025-05-22. Last modified 2026-06-17.