CVE-2025-61802 is a Use After Free vulnerability (CWE-416) identified in Adobe Substance3D - Stager, specifically affecting versions 3.1.4 and earlier. The vulnerability arises when the application improperly manages memory, freeing an object while it is still in use, which can lead to arbitrary code execution. An attacker can craft a malicious file that, when opened by a user, triggers this memory corruption, allowing execution of attacker-controlled code within the context of the current user. The attack requires user interaction—specifically, opening a malicious file—without the need for prior authentication or elevated privileges. The CVSS v3.1 score of 7.8 indicates a high severity, with attack vector local (AV:L), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:R), unchanged scope (S:U), and high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). Although no exploits are currently known in the wild, the vulnerability poses a significant risk to users of Substance3D - Stager, a tool widely used in 3D content creation and design workflows. The lack of an available patch at the time of disclosure necessitates immediate mitigation efforts to reduce exposure. This vulnerability could be leveraged to compromise systems, steal sensitive design data, or disrupt creative workflows.

The impact of CVE-2025-61802 is substantial for organizations relying on Adobe Substance3D - Stager, particularly those in industries such as digital content creation, gaming, animation, and product design. Successful exploitation can lead to arbitrary code execution with the privileges of the current user, potentially allowing attackers to install malware, exfiltrate sensitive intellectual property, or disrupt operations. Since the vulnerability affects confidentiality, integrity, and availability, it could result in data breaches, unauthorized modifications to design assets, or denial of service conditions. The requirement for user interaction means social engineering or phishing campaigns could be used to deliver malicious files, increasing the risk of targeted attacks. Organizations with many users working with 3D design files are at higher risk due to the increased attack surface. The absence of known exploits currently provides a window for proactive defense, but the high severity score underscores the urgency of mitigation.

1. Immediately restrict the opening of Substance3D - Stager files to trusted sources only, implementing strict file validation and scanning for malicious content. 2. Employ application whitelisting to prevent execution of unauthorized or suspicious files within the environment. 3. Educate users on the risks of opening files from untrusted or unknown sources, emphasizing caution with email attachments and downloads. 4. Monitor network and endpoint activity for unusual behavior related to Substance3D - Stager processes, including unexpected file access or code execution patterns. 5. Use endpoint detection and response (EDR) tools to detect potential exploitation attempts leveraging memory corruption techniques. 6. Once Adobe releases a security patch, prioritize immediate deployment across all affected systems. 7. Consider isolating Substance3D - Stager usage within sandboxed or virtualized environments to limit potential damage from exploitation. 8. Maintain regular backups of critical design files and assets to enable recovery in case of compromise. 9. Collaborate with Adobe support channels to stay informed about updates and advisories related to this vulnerability.