Listen to this Post
How the CVE Works
The vulnerability exists in IrfanView’s CADImage plugin when parsing DWG files. Attackers craft malicious DWG files containing specially designed data structures that trigger memory corruption during file processing. The plugin fails to validate buffer boundaries when reading DWG file sections, allowing heap-based buffer overflow. By precisely controlling the corrupted memory regions, attackers can achieve arbitrary code execution within the context of IrfanView’s process. The exploit requires user interaction (opening a malicious file) and leverages improper pointer arithmetic during CAD rendering operations.
DailyCVE Form
Platform: IrfanView CADImage Plugin
Version: <= 5.2.1
Vulnerability: Memory Corruption
Severity: Critical
Date: 07/25/2025
Prediction: Patch by Q3 2025
What Undercode Say
strings -a CADImage.dll | grep "DWGv" windbg -c "!exploitable" irfanview.exe python3 dwg_poc.py -o exploit.dwg
How Exploit
1. Craft malformed DWG header
2. Inject shellcode in object table
3. Trigger integer overflow in layer parsing
4. Overwrite function pointer
Protection from this CVE
1. Disable CADImage plugin
2. Apply vendor patch
3. Restrict DWG file access
Impact
1. Remote code execution
2. System compromise
3. Data exfiltration
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
