CVE-2025-54259 is a high-severity integer overflow or wraparound vulnerability (CWE-190) found in Adobe Substance3D - Modeler versions 1.22.2 and earlier. The vulnerability arises due to improper handling of integer values within the software, which can lead to an overflow or wraparound condition. This flaw can be exploited when a user opens a specially crafted malicious file, causing the software to miscalculate memory allocation or indexing operations. As a result, an attacker could execute arbitrary code within the context of the current user, potentially compromising confidentiality, integrity, and availability of the affected system. The attack vector requires local access with user interaction (opening a malicious file), and no prior authentication is needed. The scope of the vulnerability is unchanged, meaning the exploit affects only the vulnerable component without extending privileges beyond the current user context. 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, required user interaction, and high impact on confidentiality, integrity, and availability. There are currently no known exploits in the wild and no patches publicly available at the time of publication.

For European organizations, the impact of this vulnerability can be significant, especially for those using Adobe Substance3D - Modeler in design, media production, or digital content creation workflows. Successful exploitation could lead to arbitrary code execution, allowing attackers to install malware, steal sensitive intellectual property, or disrupt operations. Since the vulnerability requires user interaction, targeted phishing or social engineering campaigns could be used to trick employees into opening malicious files. This risk is heightened in collaborative environments where files are frequently shared. The compromise of design assets or proprietary models could have financial and reputational consequences. Additionally, if the compromised user has elevated privileges or access to sensitive networks, lateral movement and further compromise could occur. The lack of a patch increases the urgency for organizations to implement mitigations. Given the widespread use of Adobe products in Europe’s creative industries, the vulnerability poses a tangible threat to confidentiality and operational continuity.

European organizations should implement several specific mitigations beyond generic advice: 1) Restrict the use of Adobe Substance3D - Modeler to trusted users and environments, limiting exposure. 2) Employ application whitelisting and sandboxing techniques to contain the execution of potentially malicious files. 3) Educate users on the risks of opening files from untrusted sources, emphasizing verification of file origins. 4) Monitor file-sharing channels and email gateways for suspicious Substance3D file attachments and block or quarantine them. 5) Use endpoint detection and response (EDR) tools to detect anomalous behavior indicative of exploitation attempts. 6) Maintain strict least privilege policies to minimize the impact if a user account is compromised. 7) Regularly review and update incident response plans to include scenarios involving design software exploitation. 8) Stay alert for Adobe’s official patch releases and apply them promptly once available. 9) Consider network segmentation to isolate systems running Substance3D - Modeler from critical infrastructure.