CVE-2025-61803 is an integer overflow or wraparound vulnerability classified under CWE-190, affecting Adobe Substance3D - Stager versions 3.1.4 and earlier. Integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside the range that can be represented with a given number of bits, causing unexpected behavior such as memory corruption. In this case, the vulnerability can be triggered when a user opens a maliciously crafted file, leading to the possibility of arbitrary code execution within the context of the current user. The vulnerability requires user interaction (opening the malicious file) but does not require prior authentication or elevated privileges, making it accessible to attackers who can trick users into opening files. The CVSS v3.1 base score is 7.8, indicating a high severity with the vector AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, meaning the attack requires local access and user interaction but can fully compromise confidentiality, integrity, and availability of the affected system. No patches or exploit code are currently publicly available, but the vulnerability is officially published and recognized by Adobe and the CVE database. The flaw could be exploited to execute arbitrary code, potentially allowing attackers to install malware, steal data, or disrupt operations on affected systems running Substance3D - Stager. Given the nature of the software—used primarily in 3D design and digital content creation—this vulnerability poses a risk to creative professionals and organizations relying on Adobe’s Substance3D suite.

For European organizations, the impact of CVE-2025-61803 can be significant, especially for those in industries relying heavily on digital content creation, such as media, entertainment, advertising, and manufacturing design. Successful exploitation could lead to unauthorized code execution, data theft, or disruption of critical design workflows. This could compromise intellectual property, lead to financial losses, and damage reputations. Since the vulnerability requires user interaction, phishing or social engineering campaigns could be used to deliver malicious files. The compromise of design workstations could also serve as a foothold for lateral movement within corporate networks, potentially escalating to broader enterprise impacts. The high confidentiality, integrity, and availability impact ratings mean that sensitive design files and proprietary information are at risk. Additionally, organizations with remote or hybrid workforces using Substance3D - Stager on local machines may face increased exposure. The lack of known exploits in the wild currently reduces immediate risk but does not eliminate the threat, especially as attackers often develop exploits rapidly after public disclosure.

1. Implement strict file handling policies: Restrict the opening of Substance3D - Stager project files to trusted sources only and educate users about the risks of opening files from unknown or untrusted origins. 2. Employ application whitelisting and sandboxing: Run Substance3D - Stager within controlled environments to limit the impact of potential exploitation. 3. Monitor and filter email and file-sharing platforms for malicious files targeting Substance3D users. 4. Maintain up-to-date backups of critical design files to enable recovery in case of compromise. 5. Use endpoint detection and response (EDR) tools to detect anomalous behavior indicative of exploitation attempts. 6. Prepare to apply patches promptly once Adobe releases an official fix. 7. Conduct user awareness training focused on recognizing phishing and social engineering tactics that may deliver malicious files. 8. Limit user privileges on workstations to reduce the impact of arbitrary code execution. 9. Network segmentation to isolate design workstations from sensitive backend systems to prevent lateral movement. 10. Regularly review and update security policies related to creative software usage and file sharing.