Unrestricted upload of file with dangerous type vulnerability in Johnson Controls FM Systems Employee allows Using Malicious Files.

This issue affects FM Systems Employee: before 2025.3.1.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Johnson Controls FM Systems Employee unaffected
Version Status Constraints
0 affected < 2025.3.1

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Johnson Controls Subscribe
Fm Systems Employee Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories cve-icon
History

Fri, 31 Jul 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 31 Jul 2026 18:15:00 +0000

Type Values Removed Values Added
Description Unrestricted upload of file with dangerous type vulnerability in Johnson Controls FM Systems Employee allows Using Malicious Files. This issue affects FM Systems Employee: before 2025.3.1.
Title FMS Employee Allows Upload of Unrestricted Files
First Time appeared Johnson Controls
Johnson Controls fm Systems Employee
Weaknesses CWE-434
CPEs cpe:2.3:a:johnson_controls:fm_systems_employee:*:*:*:*:*:*:*:*
Vendors & Products Johnson Controls
Johnson Controls fm Systems Employee
References
Metrics cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: jci

Published:

Updated: 2026-07-31T18:24:41.723Z

Reserved: 2026-01-02T13:23:28.170Z

Link: CVE-2026-21662

cve-icon Vulnrichment

Updated: 2026-07-31T18:24:38.220Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses