CVE-2025-61835 is an integer underflow vulnerability classified under CWE-191 found in Adobe Substance3D - Stager, a 3D design and visualization tool widely used in creative industries. The vulnerability arises when the software processes certain integer values that wrap around due to underflow, leading to unexpected behavior in memory management. This flaw can be exploited by an attacker who crafts a malicious file that, when opened by a user, triggers the underflow condition. The result is arbitrary code execution within the context of the current user, allowing the attacker to potentially execute malicious payloads, manipulate data, or disrupt application functionality. The vulnerability requires user interaction, specifically opening a malicious file, and does not require elevated privileges or prior authentication, increasing the attack surface. The CVSS 3.1 base score of 7.8 reflects high severity, with metrics indicating low attack complexity, no privileges required, user interaction needed, and high impact on confidentiality, integrity, and availability. No patches were linked at the time of publication, and no exploits have been observed in the wild, but the risk remains significant due to the potential impact and ease of exploitation. Organizations relying on Substance3D - Stager should monitor for vendor updates and prepare to deploy patches promptly.

The vulnerability poses a significant risk to European organizations using Adobe Substance3D - Stager, particularly those in digital content creation, media production, and design sectors. Successful exploitation can lead to arbitrary code execution, enabling attackers to steal sensitive intellectual property, alter or destroy design files, or use compromised systems as footholds for further network intrusion. The compromise of user-level privileges can escalate if combined with other vulnerabilities or misconfigurations. The requirement for user interaction limits mass exploitation but targeted spear-phishing or social engineering attacks remain a realistic threat vector. Disruption to creative workflows and potential data breaches could result in financial loss, reputational damage, and regulatory consequences under GDPR if personal or sensitive data is involved. The absence of known exploits currently reduces immediate risk but does not eliminate the threat, emphasizing the need for proactive mitigation.

European organizations should implement the following specific measures: 1) Monitor Adobe's official channels for security updates and apply patches for Substance3D - Stager immediately upon release. 2) Restrict and monitor file types allowed to be opened within the application, employing file integrity checks and sandboxing where possible. 3) Educate users on the risks of opening files from untrusted sources, emphasizing phishing awareness and safe handling of email attachments. 4) Employ endpoint protection solutions capable of detecting anomalous behaviors associated with code execution from user applications. 5) Use application whitelisting to limit execution of unauthorized code. 6) Implement network segmentation to contain potential breaches originating from compromised workstations. 7) Regularly back up critical design data and verify restoration processes to minimize impact from potential data corruption or loss. 8) Conduct periodic security assessments focusing on creative software environments to identify and remediate related vulnerabilities.