CVE-2025-64466 is an out-of-bounds read vulnerability classified under CWE-125 found in National Instruments' LabVIEW software, specifically within the lvre!ExecPostedProcRecPost() function. This vulnerability occurs when LabVIEW parses a corrupted VI (Virtual Instrument) file, leading to an out-of-bounds memory read. Such memory corruption can cause the application to disclose sensitive information or allow an attacker to execute arbitrary code. The attack vector requires an attacker to convince a user to open a maliciously crafted VI file, which triggers the vulnerability. Affected versions include NI LabVIEW 2025 Q3 (25.3) and all prior versions down to at least 23.1.0. The vulnerability has a CVSS 3.1 base score of 7.8, with the vector indicating local attack vector (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). While no public exploits have been reported yet, the potential for arbitrary code execution makes this a critical concern for environments using LabVIEW. The vulnerability highlights the risks of processing untrusted VI files and the need for robust input validation and secure file handling within engineering software environments.

The impact of CVE-2025-64466 is significant for organizations using NI LabVIEW, especially in industrial automation, scientific research, and engineering sectors. Successful exploitation can lead to full system compromise via arbitrary code execution, allowing attackers to execute malicious payloads with the privileges of the user running LabVIEW. This can result in theft of sensitive intellectual property, disruption of critical engineering processes, or sabotage of automated systems. Information disclosure risks may expose proprietary data or credentials. Since LabVIEW is widely used in manufacturing, aerospace, automotive, and research institutions, the vulnerability could affect operational technology environments and research data integrity. The requirement for user interaction (opening a crafted VI file) means social engineering or phishing could be used to deliver the exploit, increasing the attack surface. The lack of known exploits in the wild currently reduces immediate risk but does not eliminate the threat, especially as attackers often develop exploits after public disclosure.

To mitigate CVE-2025-64466, organizations should: 1) Immediately update NI LabVIEW to the latest patched version once available from the vendor, as no patches are currently linked but should be prioritized upon release. 2) Implement strict controls on the sources of VI files, restricting users from opening VI files from untrusted or unknown origins. 3) Employ application whitelisting and sandboxing techniques to limit the execution context of LabVIEW and contain potential exploitation. 4) Educate users about the risks of opening unsolicited or suspicious VI files, incorporating this into security awareness training. 5) Monitor LabVIEW process behavior and system logs for anomalies indicative of exploitation attempts, such as unexpected memory access violations or crashes. 6) Use endpoint detection and response (EDR) tools to detect and block suspicious activities related to LabVIEW. 7) Consider network segmentation to isolate systems running LabVIEW from critical infrastructure to limit lateral movement if compromise occurs. 8) Review and harden file parsing and input validation policies within LabVIEW project workflows to minimize exposure to malformed files.