CVE-2025-7323: 
IrfanView vulnerability analysis and mitigation

CVE-2025-7323 is a memory corruption vulnerability in the IrfanView CADImage Plugin that affects DWG file parsing functionality. The vulnerability was discovered by Rocco Calvi and disclosed on July 8, 2025. It affects IrfanView CADImage Plugin versions prior to 4.72 and allows remote attackers to execute arbitrary code on affected installations (Zero Day Initiative).

The vulnerability exists within the parsing of DWG files and results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. The vulnerability has been assigned a CVSS v3.0 base score of 7.8 (High) with the vector string 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, NVD).

An attacker can leverage this vulnerability to execute arbitrary code in the context of the current process. User interaction is required to exploit this vulnerability, as the target must visit a malicious page or open a malicious file (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 vulnerability (Zero Day Initiative).