CVE-2025-3939 json
Observable Response Discrepancy
published 2025-05-22 17 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-16123
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
Observable Response Discrepancy vulnerability in Tridium Niagara Framework on Windows, Linux, QNX, Tridium Niagara Enterprise Security on Windows, Linux, QNX allows Cryptanalysis. 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.
Patch / fix
- Tridium Niagara Framework 4.10.11, 4.14.2, 4.15.1
- Tridium Niagara Enterprise Security 4.10.11, 4.14.2, 4.15.1
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 17 mo ago
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products
- Tridium Niagara Framework
- Tridium Niagara Enterprise Security
Classification
References
-
honeywell.com
/us/en/product-security#security-notices
vendor-advisory
-
docs.niagara-community.com
/category/tech_bull
vendor-advisory, permissions-required
Sources
- CVE List CVE-2025-3939
- NVD CVE-2025-3939
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