CVE-2025-43583
📋 TL;DR
Substance3D Viewer versions 0.22 and earlier contain a NULL pointer dereference vulnerability that allows attackers to cause denial-of-service by crashing the application. Users who open malicious files with affected versions are vulnerable. This affects anyone using Substance3D Viewer for 3D content viewing.
💻 Affected Systems
- Adobe Substance3D Viewer
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete application crash and service disruption when processing malicious files, potentially interrupting 3D design workflows.
Likely Case
Temporary application crashes requiring restart when users inadvertently open crafted malicious files.
If Mitigated
Minimal impact with proper user education about file sources and application updates.
🎯 Exploit Status
Exploitation requires user interaction to open malicious files. No authentication bypass needed beyond file opening.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.23 or later
Vendor Advisory: https://helpx.adobe.com/security/products/substance3d-viewer/apsb25-54.html
Restart Required: Yes
Instructions:
1. Open Substance3D Viewer. 2. Navigate to Help > Check for Updates. 3. Follow prompts to install version 0.23 or later. 4. Restart the application.
🔧 Temporary Workarounds
Restrict file sources
allOnly open Substance3D files from trusted sources to prevent exploitation.
🧯 If You Can't Patch
- Implement application whitelisting to prevent unauthorized Substance3D Viewer execution
- Educate users to avoid opening files from untrusted sources
🔍 How to Verify
Check if Vulnerable:
Check Help > About in Substance3D Viewer. If version is 0.22 or earlier, system is vulnerable.Check Version:
Not applicable - check via application GUIVerify Fix Applied:
Verify version is 0.23 or later in Help > About after update.📡 Detection & Monitoring
Log Indicators:
- Application crash logs with NULL pointer exceptions
- Unexpected application termination events
Network Indicators:
- No network indicators - local file exploitation
SIEM Query:
EventID=1000 OR EventID=1001 with process_name='Substance3D Viewer' AND exception_code=0xC0000005