CVE-2025-21168
📋 TL;DR
Substance3D Designer versions 14.1 and earlier contain an out-of-bounds read vulnerability that could allow attackers to read sensitive memory contents and bypass ASLR protections. Users who open malicious files with vulnerable versions are affected.
💻 Affected Systems
- Adobe Substance3D Designer
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Memory disclosure leading to ASLR bypass enabling further exploitation chains, potentially resulting in arbitrary code execution.
Likely Case
Information disclosure of memory contents, potentially exposing sensitive data or system information.
If Mitigated
Limited impact if proper file handling controls prevent malicious file execution.
🎯 Exploit Status
Exploitation requires user interaction (opening malicious file) and knowledge of memory layout.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 14.2 or later
Vendor Advisory: https://helpx.adobe.com/security/products/substance3d_designer/apsb25-62.html
Restart Required: Yes
Instructions:
1. Open Substance3D Designer. 2. Go to Help > Check for Updates. 3. Install available updates. 4. Restart the application.
🔧 Temporary Workarounds
Restrict file handling
allConfigure application to only open trusted files from verified sources.
🧯 If You Can't Patch
- Implement application whitelisting to prevent execution of unauthorized files.
- Educate users about risks of opening untrusted files and implement strict file handling policies.
🔍 How to Verify
Check if Vulnerable:
Check Substance3D Designer version in application settings or About dialog.Check Version:
Open Substance3D Designer and navigate to Help > About Substance3D DesignerVerify Fix Applied:
Confirm version is 14.2 or later after update.📡 Detection & Monitoring
Log Indicators:
- Application crash logs with memory access violations
- Unexpected file opening events
Network Indicators:
- File downloads from untrusted sources
SIEM Query:
EventID=1000 OR EventID=1001 AND ProcessName="Substance3D Designer.exe"