CVE-2025-64466 is an out-of-bounds read vulnerability classified under CWE-125 found in National Instruments' LabVIEW software, specifically in the function lvre!ExecPostedProcRecPost(). This vulnerability arises when LabVIEW parses a corrupted VI (Virtual Instrument) file, leading to an out-of-bounds memory read. Such a memory access flaw can cause the application to disclose sensitive information or, more critically, enable an attacker to execute arbitrary code. The vulnerability affects LabVIEW versions up to 25.3 (2025 Q3) and prior, including versions 0, 23.1.0, 24.1.0, and 25.1.0. Exploitation requires an attacker to convince a user to open a specially crafted VI file, meaning user interaction is necessary but no prior privileges are required. The CVSS v3.1 score of 7.8 reflects high severity, with attack vector local (AV:L), low attack complexity (AC:L), no privileges required (PR:N), user interaction required (UI:R), unchanged scope (S:U), and high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). Although no known exploits are currently in the wild, the potential for arbitrary code execution makes this vulnerability critical for environments relying on LabVIEW for automation, testing, and industrial control. The vulnerability could be leveraged to compromise system integrity, steal sensitive data, or disrupt operations by executing malicious payloads within the LabVIEW environment.

For European organizations, especially those in industrial automation, manufacturing, and engineering sectors that heavily use NI LabVIEW, this vulnerability poses a significant risk. Successful exploitation could lead to unauthorized disclosure of sensitive design or operational data, manipulation of control processes, or complete system compromise through arbitrary code execution. This can disrupt production lines, cause safety hazards, or lead to intellectual property theft. The requirement for user interaction means phishing or social engineering could be used to deliver malicious VI files. Given the critical role of LabVIEW in many European industrial and research environments, the impact could extend to critical infrastructure sectors, increasing the risk of operational downtime and financial loss. The absence of known exploits currently provides a window for proactive mitigation, but the high severity score underscores the urgency of addressing this vulnerability.

1. Apply security patches from NI immediately once available, as no official patches are currently linked but should be prioritized upon release. 2. Restrict the sources from which VI files can be obtained and opened; only allow trusted and verified VI files within the environment. 3. Implement rigorous file scanning and sandboxing for VI files before opening them in LabVIEW to detect malformed or malicious content. 4. Conduct user awareness training focused on the risks of opening untrusted VI files and recognizing phishing or social engineering attempts. 5. Employ application whitelisting and endpoint protection solutions that can detect anomalous behavior in LabVIEW processes. 6. Monitor LabVIEW application logs and system behavior for signs of exploitation attempts or unusual activity. 7. Consider network segmentation to isolate LabVIEW workstations from critical infrastructure to limit lateral movement if compromise occurs. 8. Maintain regular backups of critical VI files and system configurations to enable recovery in case of compromise.