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How the CVE Works
The vulnerability (CVE-2025-7270) in IrfanView’s CADImage Plugin arises due to improper memory handling when parsing DWG files. Attackers craft a malicious DWG file that triggers memory corruption when processed by the plugin. Since the plugin fails to validate user-supplied data, it leads to arbitrary code execution in the context of the application. Exploitation requires user interaction—opening the malicious file or visiting a malicious webpage. The flaw stems from insufficient bounds checking, allowing heap-based buffer overflow, ultimately enabling remote code execution (RCE).
DailyCVE Form
Platform: IrfanView CADImage Plugin
Version: Vulnerable versions prior to patch
Vulnerability: Memory Corruption (RCE)
Severity: Critical
Date: 07/25/2025
Prediction: Patch expected by 08/15/2025
What Undercode Say
Analytics:
– `gdb ./IrfanView –analyze-dwg [malicious.dwg]`
– `!exploitable -c “!heap -p -a @esp”`
– `python3 generate_poc.py –format dwg –overflow heap`
How Exploit:
- Craft malicious DWG file with oversized object metadata.
- Trigger heap overflow via malformed geometry data.
- Redirect execution to shellcode via corrupted vtable.
Protection from this CVE:
- Disable CADImage Plugin.
- Apply vendor patch.
- Restrict DWG file handling.
Impact:
- Full system compromise.
- Arbitrary code execution.
- Privilege escalation.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
