CVE-2025-7269 in CADImage Plugin
Summary
by MITRE • 07/21/2025
IrfanView CADImage Plugin DXF File Parsing Out-Of-Bounds Read 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 read 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-26188.
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Analysis
by VulDB Data Team • 07/26/2025
The CVE-2025-7269 vulnerability represents a critical out-of-bounds read flaw in the IrfanView CADImage Plugin that processes DXF (Drawing Exchange Format) files. This vulnerability falls under the CWE-125 Out-of-Bounds Read category, where the plugin fails to properly validate input data during DXF file parsing operations. The flaw specifically manifests when the plugin attempts to read memory locations beyond the allocated buffer boundaries, creating a potential exploitation vector for remote code execution. The vulnerability is particularly concerning because it affects a widely used image viewing application that supports various CAD file formats through its plugin architecture.
The technical implementation of this vulnerability stems from insufficient input validation within the DXF file parsing logic of the CADImage plugin. When processing maliciously crafted DXF files, the plugin does not adequately check array bounds or validate the structure of the input data before attempting to read from memory locations. This lack of proper boundary checking allows an attacker to craft a DXF file that triggers memory access violations, potentially leading to arbitrary code execution in the context of the currently running IrfanView process. The vulnerability requires user interaction to be exploited, meaning a target must either visit a malicious webpage or open a specifically crafted DXF file containing the malicious payload.
From an operational perspective, this vulnerability presents significant risk to organizations that rely on IrfanView for document viewing and CAD file processing. The remote code execution capability means that attackers can potentially gain full control over affected systems without requiring local access. The ATT&CK framework categorizes this vulnerability under T1203 Exploitation for Client Execution, as it leverages user interaction to deliver malicious payloads. The impact extends beyond individual user systems to potentially compromise entire network environments, especially in scenarios where users frequently open CAD files from untrusted sources or visit malicious websites containing embedded DXF files.
Mitigation strategies for CVE-2025-7269 should focus on immediate patching of the affected IrfanView CADImage Plugin, as this represents the most effective defense against exploitation. Organizations should implement strict file validation policies that prevent automatic execution of potentially malicious CAD files, particularly those from unknown or untrusted sources. Network-level protections such as web application firewalls and content filtering systems can help block malicious DXF file downloads or embedded content. Additionally, user education regarding the risks of opening untrusted files and visiting suspicious websites remains crucial. The vulnerability highlights the importance of proper input validation and bounds checking in plugin architectures, particularly when dealing with complex file format parsing operations. Security teams should also consider implementing sandboxing mechanisms for file processing applications to limit potential damage from successful exploitation attempts.