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CVE-2025-3940

25
FAUCET Score

CVE-2025-3940 is a critical Improper Use of Validation Framework vulnerability affecting Tridium Niagara Framework and Enterprise Security on Windows, Linux, and QNX, allowing for Input Data Manipulation. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with low attack complexity, enabling an unauthenticated attacker to achieve complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE. Tridium recommends upgrading to specific patched versions to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
4.10u10CPE matchmatch criteria
cpe:2.3:a:tridium:niagara:4.10u10:*:*:*:*:*:*:*
4.14u1CPE matchmatch criteria
cpe:2.3:a:tridium:niagara:4.14u1:*:*:*:*:*:*:*
4.15CPE matchmatch criteria
cpe:2.3:a:tridium:niagara:4.15:*:*:*:*:*:*:*
4.10u10CPE matchmatch criteria
cpe:2.3:a:tridium:niagara_enterprise_security:4.10u10:*:*:*:*:*:*:*
4.14u1CPE matchmatch criteria
cpe:2.3:a:tridium:niagara_enterprise_security:4.14u1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
22.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0030 is in the 3rd percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

coollabspatch availablevia llm_extracted
linuxpatch availablevia llm_extracted
View patch
power_bivendor investigatingvia llm_extracted

Vendor Advisories (3)

coollabsllm-coollabs-7d9991a407a5ef51

Technical Bulletin: Update Niagara to Address Vulnerabilities

May 22, 2025
linuxllm-linux-b7bbba0c7a967221

Technical Bulletin: Update Niagara to Address Vulnerabilities

May 22, 2025
power_billm-power_bi-a4b861568600cfff

Technical Bulletin: Update Niagara to Address Vulnerabilities

May 22, 2025

References

docs.niagara-community.com / category/tech_bull
Permissions Required
honeywell.com / us/en/product-security
Vendor Advisory