CVE-2025-40810 is a vulnerability classified as CWE-787 (Out-of-bounds Write) affecting Siemens Solid Edge SE2024 and SE2025 CAD software versions before V224.0 Update 14 and V225.0 Update 6, respectively. The vulnerability arises during the parsing of specially crafted PRT files, which are proprietary part files used within Solid Edge. An attacker can craft a malicious PRT file that triggers an out-of-bounds write in the application’s memory, leading to potential corruption of memory structures. This corruption can cause the application to crash (denial of service) or enable arbitrary code execution within the context of the current user process. The CVSS 3.1 base score is 7.8, reflecting high severity, with attack vector local (AV:L), low attack complexity (AC:L), no privileges required (PR:N), but user interaction required (UI:R). The scope is unchanged (S:U), and the impact is high on confidentiality, integrity, and availability (C:H/I:H/A:H). No public exploits are currently known, but the vulnerability poses a significant risk due to the potential for remote code execution if an attacker can convince a user to open a malicious file. Siemens has not yet published patches, but updates are expected in the indicated versions. The vulnerability is particularly concerning for organizations relying on Solid Edge for CAD design, as exploitation could lead to intellectual property theft, sabotage of design files, or disruption of engineering workflows.

For European organizations, especially those in manufacturing, automotive, aerospace, and industrial design sectors that heavily use Siemens Solid Edge, this vulnerability could lead to severe operational disruptions. Successful exploitation could allow attackers to execute arbitrary code, potentially leading to theft or manipulation of sensitive design data, intellectual property loss, or sabotage of product designs. This could result in financial losses, reputational damage, and regulatory compliance issues under GDPR if sensitive data is compromised. The requirement for user interaction limits remote exploitation but does not eliminate risk, as targeted phishing or social engineering campaigns could deliver malicious PRT files. Additionally, denial-of-service conditions could interrupt critical design processes, delaying production and impacting supply chains. The high confidentiality and integrity impact make this vulnerability a significant threat to the competitive advantage and operational continuity of affected organizations.

1. Apply Siemens’ official patches or updates for Solid Edge SE2024 and SE2025 as soon as they are released to address this vulnerability. 2. Implement strict controls on the origin and integrity of PRT files, including disabling automatic opening of files from untrusted sources and using file integrity monitoring. 3. Educate users on the risks of opening unsolicited or suspicious CAD files, emphasizing caution with email attachments and downloads. 4. Employ endpoint detection and response (EDR) solutions that can detect anomalous behavior or memory corruption attempts within Solid Edge processes. 5. Use application whitelisting and sandboxing techniques to limit the impact of potential exploitation. 6. Regularly back up critical design files and maintain version control to recover from potential data corruption or sabotage. 7. Monitor network and system logs for unusual activity related to Solid Edge usage or file access patterns. 8. Coordinate with Siemens support and subscribe to security advisories to stay informed about updates and exploit developments.