CVE-2026-0874 is an out-of-bounds write vulnerability classified under CWE-787 found in Autodesk Shared Components version 2026.5. This vulnerability arises when a specially crafted CATPART file is parsed by Autodesk products utilizing these shared components. The flaw allows an attacker to write outside the bounds of allocated memory, potentially leading to memory corruption. Consequences of exploitation include application crashes, data corruption, or execution of arbitrary code within the context of the affected process. The attack vector requires local access with user interaction, as the victim must open or import the malicious CATPART file. The CVSS 3.1 base score of 7.8 indicates high severity with impacts on confidentiality, integrity, and availability. The attack complexity is low, no privileges are required, but user interaction is necessary. Currently, there are no known exploits in the wild, and no patches have been published yet. Autodesk Shared Components are widely used across Autodesk CAD and design software, making this vulnerability relevant to many users in design, engineering, and manufacturing sectors. The vulnerability's exploitation could allow attackers to execute arbitrary code, potentially leading to system compromise or lateral movement within a network if the affected software is used in critical workflows.

For European organizations, the impact of CVE-2026-0874 could be significant, particularly in sectors heavily reliant on Autodesk CAD software such as automotive, aerospace, industrial manufacturing, and architecture. Successful exploitation could result in unauthorized code execution, leading to intellectual property theft, disruption of design workflows, or insertion of malicious modifications into design files. Data corruption or application crashes could cause operational downtime and loss of productivity. Given the high confidentiality and integrity impact, sensitive design data could be exposed or altered, affecting competitive advantage and compliance with data protection regulations such as GDPR. The requirement for user interaction limits mass exploitation but targeted spear-phishing or supply chain attacks embedding malicious CATPART files could pose a serious threat. The absence of known exploits currently provides a window for proactive mitigation, but the high severity score demands urgent attention to prevent potential future attacks.

1. Restrict the sources of CATPART files by enforcing strict file origin policies and educating users to avoid opening files from untrusted or unknown sources. 2. Implement application whitelisting and sandboxing for Autodesk products to limit the impact of potential exploitation. 3. Monitor and log application crashes and anomalous behavior in Autodesk software to detect early signs of exploitation attempts. 4. Deploy endpoint detection and response (EDR) solutions capable of identifying suspicious memory corruption or code execution patterns. 5. Once Autodesk releases patches or updates addressing CVE-2026-0874, prioritize immediate deployment across all affected systems. 6. Conduct user awareness training focusing on the risks of opening unsolicited CAD files and recognizing phishing attempts. 7. Consider network segmentation to isolate systems running Autodesk software, reducing lateral movement risk if compromise occurs. 8. Regularly back up critical design data and verify integrity to enable recovery from data corruption or ransomware scenarios.