CVE-2025-61835 is an integer underflow vulnerability classified under CWE-191 affecting Adobe Substance3D - Stager versions 3.1.5 and earlier. The flaw arises due to improper handling of integer values, leading to wraparound behavior when processing certain inputs, such as those found in maliciously crafted files. This underflow can corrupt memory management routines or internal data structures, enabling an attacker to execute arbitrary code in the context of the current user. The attack vector requires the victim to open a malicious file, making user interaction mandatory. The vulnerability does not require any prior authentication or elevated privileges, increasing its risk profile. The CVSS 3.1 base score of 7.8 reflects high impact on confidentiality, integrity, and availability, with low attack complexity and no privileges required. Although no public exploits are known at this time, the potential for exploitation exists given the widespread use of Adobe's creative tools. The lack of an available patch at the time of reporting necessitates immediate mitigation efforts by affected users. This vulnerability is particularly critical for environments where Adobe Substance3D - Stager is used for digital content creation, as compromise could lead to unauthorized code execution, data theft, or disruption of creative workflows.

For European organizations, the impact of CVE-2025-61835 can be significant, especially for those in the digital media, advertising, gaming, and design industries that rely on Adobe Substance3D - Stager. Successful exploitation could lead to unauthorized access to sensitive project files, intellectual property theft, and potential disruption of business operations. Since the vulnerability allows arbitrary code execution with user-level privileges, attackers could deploy malware, ransomware, or use the compromised system as a foothold for lateral movement within corporate networks. The requirement for user interaction means phishing or social engineering campaigns could be used to deliver malicious files. Given the high confidentiality and integrity impact, organizations handling proprietary or client-sensitive creative content face increased risk of reputational damage and financial loss. Additionally, availability impacts could disrupt critical creative workflows, delaying project delivery and affecting business continuity.

1. Immediately monitor Adobe's official channels for patches addressing CVE-2025-61835 and apply updates as soon as they become available. 2. Until patches are released, implement strict file handling policies: restrict opening Substance3D - Stager files from untrusted or unknown sources. 3. Educate users on the risks of opening unsolicited or suspicious files, emphasizing the need for caution with files received via email or external media. 4. Employ endpoint protection solutions capable of detecting and blocking exploitation attempts or suspicious behavior related to Adobe applications. 5. Use application whitelisting to limit execution of unauthorized code and sandbox Adobe Substance3D - Stager where feasible to contain potential exploits. 6. Regularly back up critical project data to secure, offline storage to mitigate the impact of potential ransomware or data corruption. 7. Monitor network and host logs for unusual activity indicative of exploitation attempts, such as unexpected process launches or memory anomalies. 8. Coordinate with IT security teams to review and enhance phishing defenses, as user interaction is required for exploitation.