CVE-2025-7303: 
IrfanView vulnerability analysis and mitigation

IrfanView CADImage Plugin contains a memory corruption vulnerability in the DWG file parsing functionality (CVE-2025-7303). The vulnerability was discovered in early 2025 and publicly disclosed on July 8th, 2025. This security flaw affects IrfanView CADImage Plugin versions up to 15.0.0.8 (x64/x86) and IrfanView versions up to 4.72 (x64/x86) (Zero Day Initiative).

The vulnerability stems from improper validation of user-supplied data during the parsing of DWG files, which can result in a memory corruption condition (CWE-119). The issue has been assigned a CVSS v3.0 base score of 7.8 (High) with the following vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating local access, low attack complexity, no privileges required, and user interaction required for exploitation (Zero Day Initiative).

If successfully exploited, this vulnerability allows attackers to execute arbitrary code in the context of the current process on affected installations of IrfanView CADImage Plugin. The high CVSS score reflects the potential for complete compromise of system confidentiality, integrity, and availability (Zero Day Initiative).

The vulnerability has been fixed in IrfanView CADImage Plugin version 4.72. Users are advised to upgrade to this version or later to address the security issue (Zero Day Initiative).