CVE-2024-5508 is a vulnerability classified under CWE-787 (Out-of-bounds Write) affecting Luxion KeyShot Viewer, specifically version 2023.3_12.2.1.2. The flaw exists in the parsing logic of KSP files, where the application fails to properly validate user-supplied data, leading to a write operation beyond the allocated buffer boundaries. This memory corruption can be exploited by an attacker who convinces a user to open a maliciously crafted KSP file or visit a web page that triggers the vulnerable parsing routine. The out-of-bounds write can overwrite critical memory structures, enabling arbitrary code execution within the context of the KeyShot Viewer process. The vulnerability requires user interaction but does not require prior authentication or elevated privileges. The CVSS v3.0 base score is 7.8, reflecting high severity due to the potential for remote code execution with high impact on confidentiality, integrity, and availability. Although no public exploits have been observed, the vulnerability was reported by the Zero Day Initiative (ZDI) under identifier ZDI-CAN-22267. No official patches or updates have been linked yet, so users must rely on mitigations until a fix is released.

If exploited, this vulnerability allows attackers to execute arbitrary code remotely with the same privileges as the KeyShot Viewer process. This can lead to full system compromise, data theft, installation of persistent malware, or disruption of operations. Since KeyShot Viewer is used for viewing 3D rendering files, organizations in design, manufacturing, and media sectors could face intellectual property theft or sabotage. The requirement for user interaction limits mass exploitation but targeted attacks against high-value individuals or organizations remain a significant risk. The vulnerability affects confidentiality by exposing sensitive data, integrity by allowing unauthorized code execution, and availability by potentially crashing or disabling the application or host system.

Until an official patch is released, organizations should implement the following mitigations: 1) Educate users to avoid opening KSP files from untrusted or unknown sources and to be cautious when visiting unfamiliar websites. 2) Employ application whitelisting and sandboxing to restrict the execution context of KeyShot Viewer, limiting the impact of potential exploitation. 3) Use endpoint detection and response (EDR) tools to monitor for anomalous behavior indicative of exploitation attempts. 4) Restrict network access to KeyShot Viewer systems to reduce exposure to malicious files delivered via email or web. 5) Regularly back up critical data to enable recovery in case of compromise. 6) Monitor vendor communications for patches or updates and apply them promptly once available.