CVE-2025-5037 is a high-severity buffer overflow vulnerability (CWE-120) found in Autodesk Revit versions 2024, 2025, and 2026. The vulnerability arises from improper handling of input size during the parsing of RFA files, which are native Revit family component files. Specifically, a maliciously crafted RFA file can trigger a classic buffer overflow by copying data without validating the input size, leading to memory corruption. This memory corruption can be exploited by an attacker to execute arbitrary code within the context of the Revit process. The vulnerability requires local access (AV:L) but no privileges (PR:N) and user interaction (UI:R) to open or load the malicious RFA file. The impact on confidentiality, integrity, and availability is high, as arbitrary code execution can lead to full compromise of the affected system or data manipulation. Although no known exploits are currently reported in the wild, the vulnerability's nature and high CVSS score (7.8) indicate a significant risk once weaponized. Autodesk has not yet published patches for this issue as of the provided data. Given that Revit is widely used in architectural, engineering, and construction industries for Building Information Modeling (BIM), exploitation could disrupt critical design workflows and compromise intellectual property.

For European organizations, especially those in architecture, engineering, construction, and related sectors, this vulnerability poses a substantial risk. Successful exploitation could allow attackers to execute arbitrary code, potentially leading to data theft, sabotage of design files, or deployment of further malware within corporate networks. The confidentiality of sensitive design data and intellectual property is at risk, as well as the integrity of building models, which could have downstream effects on construction safety and compliance. Availability of Revit and associated workflows could be disrupted, causing operational delays and financial losses. Given the reliance on Revit in many European countries with strong construction and infrastructure sectors, the threat could impact both private companies and public infrastructure projects. The requirement for user interaction (opening a malicious RFA file) means that social engineering or phishing could be used to deliver the exploit, increasing the attack surface.

1. Implement strict file validation and sandboxing: Organizations should enforce strict controls on the origin and integrity of RFA files before opening them in Revit. Use sandbox environments or virtual machines to open untrusted files. 2. User training and awareness: Educate users on the risks of opening RFA files from untrusted sources and implement policies to verify file provenance. 3. Network segmentation: Limit Revit workstations' network access to reduce lateral movement if exploitation occurs. 4. Monitor for anomalous behavior: Deploy endpoint detection and response (EDR) tools to detect unusual process behavior or memory corruption indicators related to Revit. 5. Apply principle of least privilege: Run Revit with the minimum necessary user privileges to limit the impact of code execution. 6. Maintain up-to-date backups: Regularly back up critical design files and system states to enable recovery in case of compromise. 7. Monitor Autodesk advisories: Stay alert for official patches or workarounds from Autodesk and apply them promptly once available. 8. Use application whitelisting: Restrict execution of unauthorized binaries that could be dropped or launched by an exploit.