CVE-2025-57109
📋 TL;DR
CVE-2025-57109 is a heap use-after-free vulnerability in Kitware VTK's GLTF file importer that could allow attackers to crash applications or potentially execute arbitrary code. This affects any application using VTK 9.5.0 to process GLTF files, particularly 3D visualization and medical imaging software. Attackers can exploit this by providing malicious GLTF files with invalid scene node references.
💻 Affected Systems
- Kitware VTK (Visualization Toolkit)
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise if the use-after-free can be weaponized to achieve memory corruption and control flow hijacking.
Likely Case
Application crash (denial of service) when processing malicious GLTF files, potentially disrupting visualization workflows.
If Mitigated
Limited to application crashes if memory corruption cannot be reliably controlled for code execution.
🎯 Exploit Status
Exploitation requires crafting malicious GLTF files and getting them processed by vulnerable VTK applications. No public exploits known as of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: VTK 9.5.1 or later
Vendor Advisory: https://gitlab.kitware.com/vtk/vtk/-/issues/19735
Restart Required: No
Instructions:
1. Update VTK to version 9.5.1 or later. 2. Rebuild any applications using VTK with the updated library. 3. Replace vulnerable VTK installations with patched versions.
🔧 Temporary Workarounds
Disable GLTF file processing
allPrevent applications from processing GLTF files entirely to block attack vector.
Input validation for GLTF files
allImplement strict validation of GLTF files before passing to VTK, rejecting files with invalid scene node references.
🧯 If You Can't Patch
- Implement network segmentation to isolate VTK applications from untrusted networks
- Use application allowlisting to prevent execution of unauthorized GLTF processing tools
🔍 How to Verify
Check if Vulnerable:
Check if VTK version is 9.5.0 and application uses vtkGLTFImporter functionality.Check Version:
vtkVersion::GetVTKVersion() in code or check VTK library version in installation directoryVerify Fix Applied:
Verify VTK version is 9.5.1 or later and test with known malicious GLTF files to ensure no crashes.📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing GLTF files
- Memory access violation errors in application logs
- Failed GLTF import operations
Network Indicators:
- Unusual GLTF file transfers to systems running VTK applications
- GLTF files from unexpected sources
SIEM Query:
source="application_logs" AND ("segmentation fault" OR "access violation" OR "heap corruption") AND process="*vtk*"