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How the CVE Works
The vulnerability (CVE-2025-7255) in IrfanView’s CADImage Plugin arises due to improper memory handling when parsing DWG files. Attackers craft malicious DWG files containing specially designed data structures that trigger memory corruption during parsing. Since the plugin fails to validate user-supplied data bounds, an out-of-bounds write or buffer overflow occurs. Successful exploitation allows arbitrary code execution within the context of the application, requiring only that the victim opens a malicious file or visits a compromised webpage hosting the exploit.
DailyCVE Form
Platform: IrfanView CADImage Plugin
Version: <= 4.60
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" gdb -ex 'run' -ex 'bt' --args irfanview.exe malicious.dwg
How Exploit:
- Crafted DWG file with oversized object metadata
- Heap spray to control execution flow
- Shellcode injection via corrupted pointer
Protection from this CVE:
- Disable CADImage Plugin
- Apply vendor patch
- Block DWG files at email gateways
Impact:
- Full system compromise
- Malware persistence
- Data exfiltration
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
