HOMEVULNERABILITIESCVE-2025-3939
MEDIUM

CVE-2025-3939

CWE-204Published: May 22, 2025· Updated: Jun 17, 2026

5.3
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2025-3939 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

blackberry1 product(s)
qnx
Linux1 product(s)
linux kernel
Microsoft1 product(s)
windows
tridium2 product(s)
niagaraniagara enterprise security
Source: NVD CPE · 9 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://honeywell.com/us/en/product-security#security-notices

All References (2)

→
https://docs.niagara-community.com/category/tech_bullPermissions Required
→
https://honeywell.com/us/en/product-security#security-noticesVendor Advisory

Quick Facts

CVE IDCVE-2025-3939
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-204
CISA KEVNo
Affected4 vendor(s)
PublishedMay 22, 2025

Related CVEs (CWE-204)

CVE-2018-25350
9.8
CVE-2026-15747
9.1
CVE-2026-33419
9.1
CVE-2025-5485
8.6
CVE-2021-34580
7.5
CVE-2024-28232
7.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-3939 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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