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FlexloggerApplication · Ni

CVE-2025-2449

HIGH · 8.8 CVSS v3.1 Published 2025-03-18
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
95/100
Remediation priority · Urgent
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
NI FlexLogger usiReg URI File Parsing Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of NI FlexLogger. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of URI files by the usiReg component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-21805.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

This is a directory traversal vulnerability in NI FlexLogger's usiReg component, which handles URI file parsing. The flaw results from insufficient validation of user-supplied paths before file operations, allowing attackers to write arbitrary files to the filesystem and potentially execute code in the context of the current user.

MitigationApply vendor patches for NI FlexLogger when available; until then, avoid opening URI files from untrusted sources and implement network segmentation to limit exposure.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
FlexloggerApplication
Affected:= 2024

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm NI FlexLogger installation
    Check for NI FlexLogger installation by looking in Program Files for 'National Instruments\FlexLogger' or run 'Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* | Where-Object {$_.DisplayName -like "*FlexLogger*"}' in PowerShell
    Affected if NI FlexLogger is installed and version shows 2024.x.x
  2. Verify exact FlexLogger version
    Run 'C:\Program Files\National Instruments\FlexLogger\FlexLogger.exe' -version 2>$null or check the version property of the executable file in the installation directory
    Affected if Version is listed as 2024 (any patch version)
  3. Check usiReg component presence
    Look for usiReg.dll or usiReg.exe in the FlexLogger installation directory, typically under 'C:\Program Files\National Instruments\FlexLogger\'
    Affected if usiReg component exists in the FlexLogger installation folder
  4. Inspect URI file handling configuration
    Check for .uri or .flexuri file associations in Windows Registry under HKCR:\.uri and look for the usiReg handler registration in HKCR:\usiReg or similar paths
    Affected if URI file types are associated with usiReg component
  5. Review FlexLogger project settings for URI import
    Look for any project configuration files (.flexconfig or similar) in FlexLogger projects that may reference external URI file loading, check the application logs for recent URI-related operations
    Affected if URI file import/loading features are enabled or were recently used

The environment is affected if NI FlexLogger version 2024 is installed with the usiReg component and URI file handling is enabled.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor patches for NI FlexLogger when available; until then, avoid opening URI files from untrusted sources and implement network segmentation to limit exposure.

Fix this in Flexlogger Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA3.0 h
19.0 hours of engineering $3,380
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-2449 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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