CVE-2025-11277 identifies a heap-based buffer overflow vulnerability in the Open Asset Import Library (Assimp) version 6.0.2, specifically within the Q3DImporter::InternReadFile function located in the source file assimp/code/AssetLib/Q3D/Q3DLoader.cpp. This vulnerability arises from improper handling of input data during the import of Q3D files, leading to a heap buffer overflow condition. An attacker with local access and low privileges can manipulate the input to trigger this overflow, potentially corrupting memory on the heap. Such corruption can result in application instability, crashes, or in some cases, arbitrary code execution depending on the environment and exploitation technique. The vulnerability does not require user interaction and has a low attack complexity, but it does require local privileges, limiting remote exploitation. The CVSS 4.0 vector (AV:L/AC:L/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P) reflects these characteristics, indicating a medium severity level. Although no exploits have been observed in the wild, proof-of-concept code has been publicly disclosed, increasing the risk of future exploitation. Assimp is widely used in applications that import and process 3D assets, including game development, CAD, and visualization tools, making this vulnerability relevant for software relying on this library. The lack of an official patch at the time of disclosure necessitates immediate mitigation strategies to reduce risk.

For European organizations, the impact of CVE-2025-11277 depends largely on the use of Assimp 6.0.2 within their software ecosystems. Organizations involved in gaming, 3D modeling, CAD, and visualization that utilize Assimp locally are at risk of local privilege escalation or denial of service through application crashes. While remote exploitation is not feasible, insider threats or compromised local accounts could exploit this vulnerability to execute arbitrary code or disrupt services. This could lead to intellectual property theft, disruption of critical design workflows, or compromise of development environments. The medium severity rating reflects moderate risk, but the presence of public exploit code elevates urgency. European companies with sensitive 3D asset pipelines or proprietary models could face operational and reputational damage if exploited. Additionally, sectors such as automotive, aerospace, and manufacturing that rely on 3D asset processing may experience workflow interruptions or data integrity issues.

1. Immediately audit all systems and software environments to identify usage of Assimp version 6.0.2, especially in local development or production environments. 2. Apply vendor patches or updates as soon as they become available; if no patch exists, consider upgrading to a later, unaffected version of Assimp. 3. Restrict local access to systems running vulnerable versions of Assimp to trusted users only, implementing strict access controls and monitoring. 4. Employ application whitelisting and endpoint detection and response (EDR) solutions to detect anomalous behavior indicative of exploitation attempts. 5. For development environments, isolate build and asset processing machines to limit exposure. 6. Conduct code reviews and static analysis on applications integrating Assimp to identify potential unsafe usage patterns. 7. Educate developers and system administrators about the vulnerability and the importance of applying mitigations promptly. 8. Monitor security advisories from the Assimp project and related communities for updates or new exploit information.