CVE-2025-3940: tridium niagara Improper Use of Validation Framework
Vulnerability summary
CVE-2025-3940 is a critical (CVSS 9.8) Improper Use of Validation Framework vulnerability in tridium niagara. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.9% of scored vulnerabilities.
Timeline
- 22-05-2025PublishedVulnerability first disclosed.
- 22-05-2025Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 2 sources · 1 version- CVE.orgCNA5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NDiffers
EPSS trend
Probability
0.37%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
+0.02 pp
From 0.36% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Tridium3 products
- niagara4.10u10 | 4.14u1 | 4.15
- niagara_enterprise_security< 4.14.2 | < 4.15.1 | < 4.10.11 | 4.10u10 | 4.14u1 | 4.15
- niagara framework< 4.14.2 | < 4.15.1 | < 4.10.11
1 vendor · 3 products
References
2 links- honeywell.com/us/en/product-securityVendor Advisory