CVE-2025-7260 in CADImage Plugin
Summary
by MITRE • 07/21/2025
IrfanView CADImage Plugin DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView CADImage Plugin. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of DXF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26129.
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Analysis
by VulDB Data Team • 07/25/2025
The CVE-2025-7260 vulnerability represents a critical out-of-bounds write flaw in IrfanView's CADImage plugin that specifically targets the parsing of DXF (Drawing Exchange Format) files. This vulnerability resides within the plugin's handling of user-supplied data during file processing, creating a dangerous condition where memory operations exceed allocated buffer boundaries. The flaw is classified as a buffer overflow vulnerability that can be exploited remotely, making it particularly dangerous for widespread deployment. The vulnerability was identified and tracked as ZDI-CAN-26129 before being assigned the CVE identifier, indicating its recognition by the security community as a significant threat.
The technical implementation of this vulnerability occurs during the parsing phase of DXF file structures where the CADImage plugin fails to properly validate input parameters before processing them. When a malicious DXF file is processed, the plugin's buffer management system does not adequately check array bounds or memory allocation limits, allowing an attacker to craft specific file structures that trigger memory corruption. This type of vulnerability falls under CWE-121, which specifically addresses stack-based buffer overflow conditions, and can be mapped to ATT&CK technique T1059.007 for command and scripting interpreter execution. The lack of proper input validation creates a direct pathway for attackers to manipulate memory layout and potentially overwrite critical program structures or execute arbitrary code.
The operational impact of this vulnerability is severe as it allows remote code execution in the context of the currently running IrfanView process, which typically operates with the privileges of the user who initiated the application. An attacker could exploit this vulnerability by delivering a malicious DXF file through various vectors including web pages, email attachments, or file sharing platforms. The requirement for user interaction through visiting a malicious page or opening a malicious file makes this vulnerability particularly insidious as it can be delivered through social engineering campaigns. The attack surface expands significantly when considering that IrfanView is widely used for image viewing and CAD file processing, making this vulnerability potentially accessible to a broad range of users across different environments and threat levels.
Mitigation strategies for CVE-2025-7260 should prioritize immediate patching of the CADImage plugin to address the buffer overflow condition through proper input validation and bounds checking. Organizations should implement defensive measures including restricting file type associations and implementing strict access controls for IrfanView installations, particularly in enterprise environments where the application may be used for processing untrusted content. Network-based protections such as web application firewalls and content filtering systems can help prevent delivery of malicious DXF files through web interfaces. Security teams should also consider implementing sandboxing mechanisms for file processing operations and monitoring for anomalous behavior patterns that might indicate exploitation attempts. Additionally, regular security awareness training should emphasize the dangers of opening untrusted files, particularly those with CAD or drawing file extensions, to reduce the risk of successful social engineering attacks that leverage this vulnerability.