CVE-2025-7266: 
IrfanView vulnerability analysis and mitigation

IrfanView CADImage Plugin contains a memory corruption vulnerability in the parsing of DXF files (CVE-2025-7266). This vulnerability was discovered in early 2025 and affects IrfanView CADImage Plugin versions prior to 4.72. The issue allows remote attackers to execute arbitrary code on affected installations, though user interaction is required through visiting a malicious page or opening a malicious file (Zero Day Initiative).

The vulnerability stems from improper validation of user-supplied data during DXF file parsing, resulting in a memory corruption condition (CWE-119). The vulnerability has received 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, indicating local access, low attack complexity, no privileges required, user interaction required, and high impacts on confidentiality, integrity, and availability (Zero Day Initiative).

Successful exploitation of this vulnerability allows attackers to execute arbitrary code in the context of the current process. This could potentially lead to complete system compromise at the level of the affected application (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 mitigate the risk (Zero Day Initiative).

The vulnerability was initially reported to the vendor on February 20, 2025, and was publicly disclosed on July 8, 2025, following a coordinated release process. Credit for discovering the vulnerability goes to Rocco Calvi (@TecR0c) with TecSecurity (Zero Day Initiative).