dbcve.org
Vt StudioApplication · Keyence

CVE-2025-61691

HIGH · 7.8 CVSS v3.1 Published 2025-10-02
Fix available
A fix is available. Upgrade to after 8.53 or later.
See remediation →
81/100
Remediation priority · High
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
VT STUDIO versions 8.53 and prior contain an out-of-bounds read vulnerability. If the product uses a specially crafted file, arbitrary code may be executed on the affected product.

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

VT STUDIO versions 8.53 and prior contain an out-of-bounds read vulnerability in file parsing functionality. When the product processes a specially crafted file, the vulnerability allows reading memory beyond allocated boundaries, which can be leveraged to achieve arbitrary code execution on the affected system.

MitigationRestrict usage of VT STUDIO to trusted files only and monitor for vendor patches addressing this vulnerability. Until a patch is available, consider using the product in isolated environments 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
Vt StudioApplication
Affected:<= 8.53

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
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/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. Locate VT STUDIO installation directory
    Search for 'VT STUDIO' or 'Keyence' folders in Program Files or Program Files (x86) directories, or check the default installation path for Keyence applications
    Affected if VT STUDIO is installed on the system
  2. Identify installed VT STUDIO version
    Right-click the main executable (typically named VTStudio.exe or similar Keyence application file), select Properties, and check the Version tab for the product version number
    Affected if The displayed version is 8.53 or any version number lower than 8.53
  3. Confirm version via Windows registry
    Open Registry Editor and search for key paths under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall or HKEY_CURRENT_USER\SOFTWARE\Keyence for VT Studio entries, then read the DisplayVersion value
    Affected if The registry shows a version <= 8.53 for any VT STUDIO installation
  4. Verify file parsing functionality presence
    Check if the VT STUDIO application includes file import, project file loading, or data file processing features by reviewing the installed program features or attempting to access file open/import dialogs within the application
    Affected if File parsing features are available and the installed version is <= 8.53

The environment is affected if VT STUDIO version 8.53 or any lower version is installed and the file parsing functionality is accessible or being used.

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.

dbcve · scoped
Upgrade available Upgrade to a release after 8.53
Interim mitigation

Restrict usage of VT STUDIO to trusted files only and monitor for vendor patches addressing this vulnerability. Until a patch is available, consider using the product in isolated environments to limit exposure.

Recommended fix Moderate confidence

VT STUDIO version 8.54 or later

  1. 1. Back up all existing VT Studio projects and configurations before proceeding with the upgrade
  2. 2. Visit the official Keyence website at www.keyence.com to locate the VT STUDIO download section
  3. 3. Navigate to the VT STUDIO product page and check for version updates or a download for version 8.54 or later
  4. 4. Download the latest version of VT STUDIO (version 8.54 or higher) from the official Keyence source
  5. 5. Close all running instances of VT STUDIO and any related processes
  6. 6. Run the installer for the new version and follow the on-screen prompts to complete the installation
  7. 7. After installation, verify the installed version by checking Help > About VT STUDIO to confirm version 8.54 or higher is installed
  8. 8. Test critical workflows with existing project files to ensure proper functionality after the upgrade

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Vt Studio Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-61691 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

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-2025-61691 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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