CVE-2025-1274 is a high-severity vulnerability identified in Autodesk Revit versions 2023, 2024, and 2025. The vulnerability is classified as CWE-787, an Out-of-Bounds Write flaw, which occurs when a maliciously crafted RCS file is parsed by the software. This flaw allows an attacker to write data outside the intended buffer boundaries, potentially leading to memory corruption. The consequences of exploiting this vulnerability include application crashes, data corruption, or the execution of arbitrary code within the context of the current Revit process. The CVSS 3.1 base score is 7.8, reflecting a high severity level. The vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) indicates that the attack requires local access (AV:L), low attack complexity (AC:L), no privileges (PR:N), but does require user interaction (UI:R). The scope remains unchanged (S:U), and the impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H). No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability arises during the parsing of RCS files, which are native Revit project files, suggesting that an attacker would need to convince a user to open or import a malicious RCS file to trigger the vulnerability. Given the nature of the flaw, successful exploitation could allow attackers to execute arbitrary code, potentially leading to full compromise of the affected system under the privileges of the user running Revit.

For European organizations, especially those in architecture, engineering, and construction sectors that rely heavily on Autodesk Revit for Building Information Modeling (BIM), this vulnerability poses a significant risk. Exploitation could lead to loss of sensitive design data, intellectual property theft, disruption of project workflows, and potential sabotage of critical infrastructure projects. The ability to execute arbitrary code could allow attackers to move laterally within corporate networks, escalate privileges, or deploy ransomware and other malware. Given the high confidentiality, integrity, and availability impacts, organizations could face operational downtime, financial losses, and reputational damage. Additionally, compromised design files could result in flawed construction plans, leading to safety hazards. The requirement for local access and user interaction somewhat limits remote exploitation but does not eliminate risk, as phishing or social engineering could be used to deliver malicious RCS files. The absence of known exploits in the wild currently provides a window for mitigation before active attacks emerge.

European organizations should implement several targeted measures beyond generic advice: 1) Restrict the handling of RCS files to trusted sources only; implement strict email and file transfer filtering to detect and block suspicious RCS files. 2) Educate users, especially designers and engineers, about the risks of opening unsolicited or unexpected RCS files and train them to verify file origins. 3) Employ application whitelisting and sandboxing techniques for Autodesk Revit to limit the impact of potential exploitation. 4) Monitor system and application logs for unusual behavior during file parsing or crashes related to Revit. 5) Coordinate with Autodesk for timely patch deployment once available; in the interim, consider disabling or restricting RCS file import functionality if feasible. 6) Implement endpoint detection and response (EDR) solutions capable of detecting memory corruption or abnormal process behavior indicative of exploitation attempts. 7) Maintain regular backups of critical project files and ensure backup integrity to recover from potential data corruption or ransomware attacks. 8) Network segmentation to isolate design workstations from critical infrastructure and sensitive data repositories can limit lateral movement in case of compromise.