CVE-2025-54237 is an out-of-bounds read vulnerability (CWE-125) affecting Adobe Substance3D - Stager versions 3.1.3 and earlier. This vulnerability arises when the software improperly handles memory boundaries, allowing an attacker to read memory locations outside the intended buffer. Such out-of-bounds reads can lead to the exposure of sensitive information stored in adjacent memory, potentially including user data, application secrets, or other confidential information. Exploitation requires user interaction, specifically the victim opening a crafted malicious file designed to trigger the vulnerability within Substance3D - Stager. The CVSS v3.1 base score is 5.5 (medium severity), reflecting that the attack vector is local (AV:L), requires low attack complexity (AC:L), no privileges (PR:N), but does require user interaction (UI:R). The impact is high on confidentiality (C:H), with no impact on integrity (I:N) or availability (A:N). There are no known exploits in the wild at the time of publication, and no patches have been linked yet. The vulnerability could be leveraged by threat actors to disclose sensitive information from memory, which may include proprietary design files or intellectual property, given the nature of Substance3D - Stager as a 3D design and staging tool used in creative workflows.

For European organizations, especially those in industries relying on 3D design, digital content creation, and media production, this vulnerability poses a risk of sensitive data leakage. Intellectual property theft or exposure of confidential project files could lead to competitive disadvantage, financial loss, or reputational damage. Organizations handling sensitive client data or proprietary designs may face compliance risks under GDPR if personal or confidential information is exposed. The requirement for user interaction means that social engineering or phishing campaigns could be used to deliver malicious files, increasing the risk in environments where users frequently exchange design files. Since Adobe Substance3D - Stager is used in creative sectors, companies in advertising, gaming, automotive design, and manufacturing could be particularly impacted. The medium severity score indicates a moderate risk, but the confidentiality impact is significant enough to warrant prompt attention.

European organizations should implement the following specific mitigations: 1) Restrict and monitor the exchange of Substance3D - Stager project files, especially from untrusted sources, to reduce the risk of opening malicious files. 2) Educate users on the risks of opening files from unknown or suspicious origins, emphasizing the potential for memory exposure vulnerabilities. 3) Employ application whitelisting and sandboxing techniques for Substance3D - Stager to limit the impact of exploitation attempts. 4) Monitor network and endpoint logs for unusual file access or process behavior related to Substance3D - Stager. 5) Coordinate with Adobe for timely patch deployment once available; meanwhile, consider temporary disabling or limiting use of affected versions if feasible. 6) Implement Data Loss Prevention (DLP) controls to detect and prevent unauthorized exfiltration of sensitive design data. 7) Maintain up-to-date backups of critical design projects to mitigate potential indirect impacts.