CVE-2025-11275 identifies a heap-based buffer overflow vulnerability in the Open Asset Import Library (Assimp) version 6.0.2, specifically within the function ODDLParser::getNextSeparator located in the openddlparser utility header. This function is responsible for parsing separators in OpenDDL formatted data, a format used for describing 3D assets. The vulnerability arises from improper handling of input data leading to a heap buffer overflow condition. An attacker with local access and limited privileges can exploit this flaw by crafting malicious input that triggers the overflow, potentially causing memory corruption, application crashes, or arbitrary code execution. The attack vector is local (AV:L), requires low attack complexity (AC:L), no user interaction (UI:N), and low privileges (PR:L). The vulnerability impacts confidentiality, integrity, and availability, but the scope is limited to local systems using the vulnerable Assimp version. Although no known exploits are currently observed in the wild, a public exploit is available, increasing the risk of exploitation. Assimp is widely used in applications that import and process 3D assets across various industries including gaming, CAD, and simulation, making this vulnerability relevant to software developers and organizations relying on these technologies.

For European organizations, the impact of CVE-2025-11275 depends on the extent of Assimp usage within their software development lifecycle or production environments. Organizations involved in 3D modeling, gaming, automotive design, aerospace, and simulation software are at higher risk. Successful exploitation could lead to local privilege escalation, unauthorized code execution, or denial of service, compromising system integrity and availability. Confidential data processed or stored by applications using Assimp might also be exposed or corrupted. Given the local attack requirement, insider threats or compromised user accounts pose the greatest risk. The medium severity rating reflects the moderate risk but highlights the need for vigilance, especially in sectors with sensitive intellectual property or critical infrastructure relying on 3D asset processing.

1. Monitor for and apply patches or updates from the Assimp project promptly once available to address CVE-2025-11275. 2. Until patches are released, restrict local access to systems running vulnerable Assimp versions, limiting user privileges and enforcing strict access controls. 3. Employ runtime memory protection mechanisms such as AddressSanitizer, heap overflow detection, or control flow integrity to detect and prevent exploitation attempts. 4. Review and sanitize all inputs processed by Assimp, especially those involving OpenDDL formatted data, to reduce the risk of malicious input triggering the overflow. 5. Conduct code audits and static analysis on applications embedding Assimp to identify and mitigate unsafe usage patterns. 6. Implement robust endpoint security solutions to detect anomalous behaviors indicative of exploitation attempts. 7. Educate developers and system administrators about the vulnerability and the importance of minimizing local attack surfaces.