CVE-2022-42939 is a high-severity memory corruption vulnerability found in Autodesk Design Review versions 2011, 2012, 2013, 2017, and 2018. The vulnerability arises when the application processes a specially crafted TGA (Targa) image file. This malformed input can trigger a memory corruption condition, specifically related to improper handling of memory buffers (classified under CWE-787: Out-of-bounds Write). Although this vulnerability alone may not directly allow code execution, it can be chained with other vulnerabilities to achieve arbitrary code execution within the context of the current user process. The vulnerability requires local access to the DesignReview.exe application and user interaction to open the malicious TGA file. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability, with low attack complexity and no privileges required but user interaction necessary. No official patches have been released as of the publication date, and no known exploits are currently observed in the wild. However, the potential for exploitation exists, especially in environments where untrusted TGA files are opened. Autodesk Design Review is a widely used tool for viewing and annotating design files, particularly in engineering and architectural sectors, making this vulnerability relevant for organizations relying on these workflows.

For European organizations, the impact of this vulnerability can be significant, especially in industries such as manufacturing, engineering, construction, and architecture where Autodesk Design Review is commonly used. Exploitation could lead to unauthorized disclosure of sensitive design data (confidentiality impact), modification or corruption of design files (integrity impact), and disruption of business operations due to application crashes or arbitrary code execution (availability impact). Given the potential for code execution, attackers could pivot within affected networks, escalate privileges, or deploy malware. This risk is heightened in organizations that handle sensitive intellectual property or critical infrastructure projects. Moreover, the requirement for user interaction means phishing or social engineering campaigns could be used to deliver malicious TGA files, increasing the attack surface. The lack of patches necessitates immediate attention to mitigate risks. Failure to address this vulnerability could lead to regulatory compliance issues under GDPR if personal or sensitive data is compromised during an attack.

1. Immediate mitigation should focus on restricting the opening of untrusted or unsolicited TGA files within Autodesk Design Review. Implement strict file handling policies and user training to recognize suspicious files. 2. Employ application whitelisting and sandboxing techniques to limit the impact of potential exploitation. Running Design Review in a restricted environment can prevent escalation. 3. Monitor and control email attachments and downloads to block or flag TGA files from unknown sources. 4. Use endpoint detection and response (EDR) solutions to detect anomalous behaviors related to DesignReview.exe processes. 5. Regularly audit and update software inventory to identify all instances of affected Autodesk Design Review versions. 6. Engage with Autodesk support channels for any forthcoming patches or official workarounds. 7. Consider alternative secure viewers or upgrade paths if feasible, as the affected versions are legacy and may no longer receive support. 8. Implement network segmentation to isolate systems running Design Review from critical infrastructure to limit lateral movement in case of compromise.