CVE-2025-9453 is an out-of-bounds read vulnerability classified under CWE-125 found in Autodesk Shared Components version 2026.0. This vulnerability arises when the software parses a maliciously crafted PRT file, a file format commonly used in CAD applications. The out-of-bounds read can lead to several adverse outcomes: application crashes (denial of service), unauthorized reading of sensitive memory contents, or even arbitrary code execution within the context of the running process. The vulnerability requires the user to open or otherwise process the malicious PRT file, implying user interaction is necessary. No privileges are required to exploit this vulnerability, but the attacker must have local access or deliver the malicious file to the user. The CVSS 3.1 vector (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) indicates local attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, and high impact on confidentiality, integrity, and availability. Although no known exploits are reported in the wild, the potential for arbitrary code execution makes this a significant threat. Autodesk Shared Components are widely used in various Autodesk products, which are prevalent in engineering, manufacturing, and design industries. The vulnerability's presence in a shared component means multiple Autodesk applications could be affected, increasing the attack surface. The lack of available patches at the time of publication necessitates immediate risk mitigation through operational controls and monitoring.

For European organizations, especially those in manufacturing, engineering, automotive, aerospace, and construction sectors that heavily rely on Autodesk CAD software, this vulnerability poses a substantial risk. Exploitation could lead to unauthorized disclosure of intellectual property or sensitive design data, potentially causing financial loss and reputational damage. Arbitrary code execution could allow attackers to establish persistence, move laterally within networks, or deploy ransomware and other malware. The requirement for user interaction and local access somewhat limits remote exploitation but does not eliminate risk, as phishing or supply chain attacks could deliver malicious PRT files. Disruption of critical design workflows due to application crashes could also impact operational continuity. Given the strategic importance of these industries in countries like Germany, France, Italy, and the UK, the vulnerability could have broader economic implications if exploited at scale.

Organizations should implement the following specific mitigations: 1) Immediately restrict the acceptance and opening of PRT files from untrusted or unknown sources, employing strict file validation and sandboxing where possible. 2) Educate users on the risks of opening unsolicited or suspicious CAD files, emphasizing cautious handling of PRT files. 3) Monitor network and endpoint activity for unusual file access patterns or crashes related to Autodesk products. 4) Employ application whitelisting and endpoint detection and response (EDR) solutions to detect and block exploitation attempts. 5) Coordinate with Autodesk for timely patch deployment once available, and prioritize patching of all affected Autodesk products sharing the vulnerable component. 6) Consider isolating design workstations from general-purpose networks to limit lateral movement in case of compromise. 7) Review and enhance incident response plans to address potential exploitation scenarios involving CAD software. These measures go beyond generic advice by focusing on file handling policies, user awareness, and network segmentation tailored to the CAD environment.