CVE-2025-49560
📋 TL;DR
CVE-2025-49560 is a heap-based buffer overflow vulnerability in Substance3D Viewer that allows arbitrary code execution when a user opens a malicious file. This affects users of Substance3D Viewer version 0.25 and earlier, potentially compromising their systems.
💻 Affected Systems
- Adobe Substance3D Viewer
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control of the user's machine and potentially pivoting to other systems.
Likely Case
Local privilege escalation leading to data theft, ransomware deployment, or persistence establishment on the affected system.
If Mitigated
Limited impact if file execution is blocked or application runs in sandboxed environment.
🎯 Exploit Status
Requires user interaction (opening malicious file) and heap manipulation knowledge.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.26 or later
Vendor Advisory: https://helpx.adobe.com/security/products/substance3d-viewer/apsb25-72.html
Restart Required: Yes
Instructions:
1. Open Substance3D Viewer. 2. Go to Help > Check for Updates. 3. Install version 0.26 or later. 4. Restart the application.
🔧 Temporary Workarounds
Block suspicious file types
allConfigure application or system to block opening of untrusted .sbsar or other Substance3D file formats
Run in sandboxed environment
allUse application sandboxing or virtualization to limit potential damage
🧯 If You Can't Patch
- Restrict user permissions to limit potential damage from code execution
- Implement application whitelisting to prevent unauthorized execution
🔍 How to Verify
Check if Vulnerable:
Check Help > About in Substance3D Viewer for version numberCheck Version:
Not applicable - check via application GUIVerify Fix Applied:
Confirm version is 0.26 or higher in Help > About📡 Detection & Monitoring
Log Indicators:
- Application crashes with memory access violations
- Unusual file opening events from Substance3D Viewer
Network Indicators:
- Outbound connections from Substance3D Viewer to unexpected destinations
SIEM Query:
process_name:"Substance3D Viewer" AND (event_type:crash OR file_operation:open)