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Honeywell CNM CVE-2026-5434

| EUVD-2026-31251 MEDIUM
Insertion of Sensitive Information into Externally-Accessible File (CWE-538)
2026-05-21 Honeywell GHSA-m6f8-6m3m-x2rv
5.9
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

1
Analysis Generated
May 21, 2026 - 09:34 vuln.today

DescriptionNVD

Honeywell Control Network Module (CNM) contains insertion of sensitive information into an unintended directory. An attacker could exploit this vulnerability through probing system files, potentially resulting in unintended access to protected data.

AnalysisAI

Sensitive information disclosure in Honeywell Control Network Module (CNM) versions 100.1 through 110.2 allows unauthenticated remote attackers to access protected data by probing system file paths that inadvertently receive sensitive writes. The root cause is CWE-538, where the module incorrectly routes sensitive information into directories accessible outside the intended trust boundary. …

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CVE-2026-5434 vulnerability details – vuln.today

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