CVE-2025-54244 is a heap-based buffer overflow vulnerability (CWE-122) identified in Adobe Substance3D - Viewer versions 0.25.1 and earlier. This vulnerability arises from improper handling of memory buffers on the heap, which can be exploited when a user opens a specially crafted malicious file. The flaw allows an attacker to overwrite memory beyond the allocated buffer, potentially leading to arbitrary code execution within the context of the current user. The vulnerability requires user interaction, specifically the victim opening a malicious file, which triggers the overflow. The CVSS v3.1 base score of 7.8 classifies this as a high-severity issue, reflecting high impact on confidentiality, integrity, and availability (all rated high), with low attack complexity, no privileges required, but user interaction necessary. Exploitation could allow an attacker to execute code, potentially leading to system compromise, data theft, or further malware deployment. Currently, no patches or updates have been released by Adobe, and no known exploits are reported in the wild. However, the presence of this vulnerability in a widely used creative tool poses a significant risk, especially in environments where users frequently open files from external or untrusted sources.

For European organizations, the impact of CVE-2025-54244 can be substantial, particularly in industries relying on digital content creation, design, and media production where Adobe Substance3D - Viewer is used. Successful exploitation could lead to unauthorized code execution, resulting in data breaches, intellectual property theft, or disruption of creative workflows. Since the vulnerability affects the current user's privileges, if the user has elevated rights, the attacker could gain broader system control. This risk is heightened in organizations with lax endpoint security or insufficient user training on handling untrusted files. Additionally, the potential for lateral movement within networks exists if attackers leverage compromised endpoints as footholds. The absence of a patch increases the window of exposure, making timely mitigation critical. Furthermore, regulatory frameworks such as GDPR impose strict data protection requirements; a breach resulting from this vulnerability could lead to legal and financial consequences for European entities.

Given the lack of an official patch, European organizations should implement layered mitigations: 1) Enforce strict file handling policies, restricting the opening of files from untrusted or unknown sources within Substance3D - Viewer. 2) Employ application whitelisting and sandboxing techniques to limit the execution context and contain potential exploits. 3) Educate users on the risks of opening unsolicited or suspicious files and promote vigilance. 4) Utilize endpoint detection and response (EDR) solutions to monitor for anomalous behavior indicative of exploitation attempts. 5) Regularly update all related software components and monitor Adobe advisories for forthcoming patches. 6) Consider network segmentation to limit the spread if a compromise occurs. 7) Implement least privilege principles to reduce the impact of code execution under user context. 8) Use advanced threat protection tools that can analyze and block malicious files before they reach end users.