CVE-2025-8354 is a type confusion vulnerability classified under CWE-843 found in Autodesk Revit versions 2024 and 2026. The vulnerability is triggered when Revit parses a maliciously crafted RFA (Revit Family) file. Type confusion occurs when the program incorrectly interprets the type of an object in memory, leading to undefined behavior. In this case, the crafted RFA file causes Revit to mismanage internal data structures, which can result in application crashes, data corruption, or arbitrary code execution within the context of the Revit process. The vulnerability requires user interaction, specifically opening or importing the malicious RFA file, and local access with low privileges, as indicated by the CVSS vector (AV:L/AC:L/PR:N/UI:R). The impact on confidentiality, integrity, and availability is high, as arbitrary code execution could allow attackers to execute malicious payloads, steal sensitive design data, or disrupt workflows. Although no known exploits are currently reported in the wild, the vulnerability's nature and high CVSS score make it a significant risk. Autodesk has not yet published patches, so organizations must implement interim mitigations. This vulnerability is particularly concerning for organizations heavily reliant on Revit for architectural and engineering design, as exploitation could compromise critical intellectual property and operational continuity.

For European organizations, especially those in architecture, engineering, and construction (AEC) sectors, this vulnerability poses a significant threat. Successful exploitation could lead to unauthorized code execution, enabling attackers to steal proprietary design data, disrupt project workflows, or deploy ransomware and other malware. Data corruption could compromise the integrity of critical building models, leading to costly errors or delays. The requirement for user interaction means phishing or social engineering could be used to deliver malicious RFA files. Given the widespread use of Autodesk Revit in Europe’s robust AEC industry, the potential impact includes financial losses, reputational damage, and operational disruptions. Additionally, compromised systems could serve as footholds for lateral movement within enterprise networks, increasing overall risk exposure.

1. Restrict the opening of RFA files to trusted sources only; implement strict file validation and scanning before importing into Revit. 2. Employ application whitelisting to prevent execution of unauthorized code within the Revit environment. 3. Disable or limit automatic loading or previewing of RFA files in Revit where possible. 4. Monitor user activity and file access logs for unusual behavior related to RFA files. 5. Educate users on the risks of opening unsolicited or unexpected RFA files, emphasizing phishing awareness. 6. Isolate Revit workstations from critical network segments to limit potential lateral movement. 7. Maintain up-to-date backups of design files to mitigate data corruption impacts. 8. Apply security updates promptly once Autodesk releases official patches. 9. Consider deploying endpoint detection and response (EDR) solutions to detect exploitation attempts. 10. Collaborate with Autodesk support channels for guidance and early patch notifications.