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How CVE-2025-7254 Works
The vulnerability exists in the CADImage plugin of IrfanView when processing DXF files. During DXF file parsing, the plugin fails to properly validate user-supplied data, leading to memory corruption. Attackers craft malicious DXF files containing oversized or malformed data structures that overflow allocated buffers. When a victim opens the malicious file, the lack of bounds checking allows overwriting adjacent memory regions. This corruption can redirect execution flow to attacker-controlled code within the file, achieving remote code execution in the context of the IrfanView process.
DailyCVE Form
Platform: IrfanView CADImage Plugin
Version: <= 4.60
Vulnerability: Memory Corruption
Severity: Critical
Date: 2025-07-25
Prediction: Patch by 2025-08-15
What Undercode Say
strings malicious.dxf | grep ENTITIES hexdump -C corrupted.dxf gdb -ex r -ex bt -args iview.exe exploit.dxf
How Exploit
1. Craft DXF with oversized layer data
2. Embed shellcode in ENTITIES section
3. Trigger buffer overflow via malformed header
Protection from this CVE
1. Disable DXF support
2. Apply vendor patch
3. Enable DEP/ASLR
Impact
1. Remote code execution
2. System compromise
3. Data exfiltration
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
