CVE-2025-49569 is a high-severity out-of-bounds write vulnerability (CWE-787) affecting Adobe Substance3D - Viewer versions 0.25 and earlier. This vulnerability arises when the software improperly handles memory boundaries, allowing an attacker to write data outside the intended buffer. Such out-of-bounds writes can corrupt memory, potentially enabling arbitrary code execution within the context of the current user. Exploitation requires user interaction, specifically the victim opening a maliciously crafted file designed to trigger the vulnerability. The CVSS 3.1 base score of 7.8 reflects a high impact on confidentiality, integrity, and availability, with low attack complexity and no privileges required, but user interaction is necessary. The vulnerability scope is unchanged, meaning the exploit affects only the vulnerable application and not other system components. No known exploits are currently reported in the wild, and no patches have been published yet. Given the nature of the vulnerability, successful exploitation could allow attackers to execute arbitrary code, potentially leading to data theft, system compromise, or further lateral movement within an environment.

For European organizations, this vulnerability poses a significant risk, especially those using Adobe Substance3D - Viewer in creative, design, or digital content production workflows. Exploitation could lead to unauthorized access to sensitive intellectual property, disruption of design processes, and potential compromise of user workstations. Since the vulnerability requires user interaction, phishing or social engineering campaigns could be leveraged to deliver malicious files. The arbitrary code execution capability could also serve as a foothold for attackers to escalate privileges or move laterally within corporate networks. Organizations in sectors such as media, advertising, manufacturing, and gaming—where Substance3D tools are more prevalent—may face increased risk. Additionally, the lack of an available patch increases exposure time, necessitating immediate mitigation efforts to prevent exploitation.

1. Implement strict email and file filtering to block or quarantine suspicious files, especially those with extensions associated with Substance3D - Viewer. 2. Educate users on the risks of opening files from untrusted sources and train them to recognize phishing attempts. 3. Employ application whitelisting and sandboxing techniques to restrict the execution environment of Substance3D - Viewer, limiting the impact of potential exploits. 4. Monitor network and endpoint behavior for anomalies indicative of exploitation attempts, such as unexpected process launches or memory corruption indicators. 5. Maintain up-to-date backups of critical design files to enable recovery in case of compromise. 6. Coordinate with Adobe for timely patch deployment once available and consider temporary disabling or restricting use of Substance3D - Viewer in high-risk environments until patched. 7. Use endpoint detection and response (EDR) tools to detect and respond to suspicious activities related to this vulnerability.