Unrestricted File UploadWeakness · CWE-434

CVE-2025-12048

HIGH · 7.5 CVSS v3.1 Published 2025-11-12
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
No privileges Zero-click

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
An arbitrary file upload vulnerability was reported in the Lenovo Scanner Pro client during an internal security assessment that could allow remote code execution or unauthorized control of the affected system.

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 · moderate confidence

Lenovo Scanner Pro client contains an arbitrary file upload vulnerability that could allow attackers to upload malicious files, potentially leading to remote code execution on affected systems.

MitigationRestrict file upload functionality to only allow safe file types, implement strict server-side validation, store uploaded files in non-executable directories, and apply proper access controls to prevent execution of uploaded content.

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

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
Adjacent
Complexity
High
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/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. Identify if Lenovo Scanner Pro is installed
    Check for Lenovo Scanner Pro in installed programs (Windows: Control Panel > Programs and Features, or PowerShell: Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* | Where-Object {$_.DisplayName -like '*Scanner*Pro*'})
    Affected if Lenovo Scanner Pro is found on the system
  2. Determine the installed version
    Open Lenovo Scanner Pro, go to Help > About, or check the version in the application's executable properties (right-click the .exe file > Properties > Details)
    Affected if A version of Lenovo Scanner Pro is installed (compare to affected version range if known)
  3. Locate the file upload component
    Examine the application directory for upload-related modules, DLLs, or configuration files related to scanning/importing documents
    Affected if File upload functionality exists within the application
  4. Check upload directory permissions and location
    Find the default upload/scan import directory in application settings or configuration files; verify if it is located in a web-accessible or executable path
    Affected if Uploaded files are stored in a directory that permits execution or is web-exposed
  5. Inspect upload functionality access controls
    Review application settings, configuration files, or network traffic to determine if the file upload feature requires authentication or is accessible to unauthenticated users
    Affected if File upload endpoint is exposed without proper authentication or access restrictions

A user is affected if Lenovo Scanner Pro is installed and its file upload feature is accessible without sufficient validation or is configured to store files in executable locations.

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

Restrict file upload functionality to only allow safe file types, implement strict server-side validation, store uploaded files in non-executable directories, and apply proper access controls to prevent execution of uploaded content.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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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-2025-12048 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data