CVE-2025-54273 is an out-of-bounds write vulnerability classified under CWE-787, affecting Adobe Substance3D - Viewer versions 0.25.2 and earlier. The flaw arises when the application improperly handles memory boundaries while processing input data from files, allowing an attacker to write data outside the intended buffer. This memory corruption can be leveraged to execute arbitrary code within the security context of the current user. Exploitation requires user interaction, specifically the victim opening a maliciously crafted file designed to trigger the vulnerability. The vulnerability impacts confidentiality, integrity, and availability by enabling attackers to execute arbitrary code, potentially leading to data theft, unauthorized modifications, or denial of service. The CVSS v3.1 base score is 7.8, reflecting high severity due to the combination of local attack vector, low attack complexity, no privileges required, but requiring user interaction. No patches or exploit code are currently publicly available, and no known exploits in the wild have been reported. Adobe Substance3D - Viewer is a tool widely used in digital content creation, particularly in 3D modeling and design workflows, making this vulnerability relevant to creative professionals and organizations relying on this software.

For European organizations, the impact of CVE-2025-54273 can be significant, especially for those in industries like digital media, gaming, advertising, and product design that rely heavily on Adobe Substance3D - Viewer. Successful exploitation could lead to arbitrary code execution, enabling attackers to steal sensitive intellectual property, manipulate design files, or disrupt creative workflows. This could result in financial losses, reputational damage, and operational downtime. Since the vulnerability requires user interaction, phishing or social engineering campaigns could be used to deliver malicious files. Additionally, compromised endpoints could serve as footholds for further network intrusion, escalating the risk to broader IT infrastructure. The lack of available patches at the time of disclosure increases the urgency for organizations to implement interim mitigations to reduce exposure.

1. Monitor Adobe’s official channels closely for patches or updates addressing CVE-2025-54273 and apply them immediately upon release. 2. Implement strict controls on file sources by restricting the opening of files from untrusted or unknown origins within Substance3D - Viewer. 3. Educate users about the risks of opening unsolicited or suspicious files, emphasizing caution with files received via email or external sources. 4. Deploy endpoint detection and response (EDR) solutions capable of identifying anomalous behavior indicative of exploitation attempts, such as unexpected memory writes or code execution. 5. Use application whitelisting to limit execution of unauthorized code and sandbox Substance3D - Viewer where feasible to contain potential exploits. 6. Regularly back up critical design files and maintain version control to enable recovery in case of compromise. 7. Network segmentation can limit lateral movement if an endpoint is compromised. 8. Conduct simulated phishing exercises to raise awareness about social engineering tactics that could deliver malicious files.