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How the CVE Works
The vulnerability (CVE-2025-7240) in IrfanView’s CADImage Plugin stems from improper memory handling during DWG file parsing. Attackers craft malicious DWG files, triggering memory corruption when processed. Due to insufficient input validation, this corruption allows arbitrary code execution within the context of the application. Exploitation requires user interaction (e.g., opening a malicious file), but successful attacks grant full control over the affected system. The flaw, tracked as ZDI-CAN-26086, has a critical CVSS 4.0 rating due to its remote code execution (RCE) potential.
DailyCVE Form
Platform: IrfanView CADImage Plugin
Version: Vulnerable versions pre-patch
Vulnerability: Memory Corruption (RCE)
Severity: Critical
Date: 07/25/2025
Prediction: Patch expected by 08/15/2025
What Undercode Say
Analytics:
strings malicious.dwg | grep "ACAD" windbg -c "!analyze -v" IrfanView.exe python3 exploit_dwg.py --target 192.168.1.10
Exploit:
- Crafted DWG files trigger heap corruption.
- Exploit chains memory writes for EIP control.
- Metasploit module likely post-patch disclosure.
Protection from this CVE:
- Disable CADImage Plugin.
- Apply vendor patch immediately.
- Restrict DWG file handling.
Impact:
- Full system compromise.
- Lateral movement possible.
- Data exfiltration risk.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
