CVE-2025-7240: 
IrfanView vulnerability analysis and mitigation

IrfanView CADImage Plugin contains a remote code execution vulnerability (CVE-2025-7240) that affects the parsing of DWG files. The vulnerability was discovered by Rocco Calvi (@TecR0c) with TecSecurity and was reported to the vendor on February 11, 2025. The issue affects IrfanView CADImage Plugin versions up to (excluding) 15.0.0.8 for both x86 and x64 architectures, as well as IrfanView versions up to (excluding) 4.72 (Zero Day Initiative).

The vulnerability stems from the lack of proper validation of user-supplied data during the parsing of DWG files, which can result in a memory corruption condition. The issue has been assigned a CVSS v3.0 base score of 7.8 (HIGH) with the vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The vulnerability is classified as CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) (Zero Day Initiative).

If successfully exploited, this vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView CADImage Plugin. The attacker can leverage this vulnerability to execute code in the context of the current process (Zero Day Initiative).

The vulnerability has been fixed in IrfanView CADImage Plugin version 4.72. Users are advised to update to this version or newer to mitigate the risk (Zero Day Initiative).