CVE-2025-64461 is an out-of-bounds write vulnerability classified under CWE-787, found in the NI LabVIEW software suite, specifically within the mgocre_SH_25_3!RevBL() function responsible for parsing VI (Virtual Instrument) files. This vulnerability arises when LabVIEW processes a specially crafted VI file that contains corrupted data, causing the software to write data outside the bounds of allocated memory buffers. Such memory corruption can lead to arbitrary code execution or information disclosure, depending on how the corrupted memory is leveraged by an attacker. The vulnerability affects NI LabVIEW versions up to and including 25.3 (2025 Q3) and earlier versions such as 23.1.0, 24.1.0, and 25.1.0. Exploitation requires user interaction, specifically opening a malicious VI file, which may be delivered via email, shared drives, or other file transfer methods. 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). No public exploits or patches have been reported at the time of publication, but the vulnerability poses a significant risk due to the potential for remote code execution and data compromise in environments using LabVIEW for critical engineering and automation tasks.

The impact of CVE-2025-64461 is substantial for organizations relying on NI LabVIEW for industrial automation, engineering design, data acquisition, and control systems. Successful exploitation can lead to arbitrary code execution, allowing attackers to gain control over affected systems, potentially disrupting operations, stealing sensitive intellectual property, or manipulating data integrity. Information disclosure could expose proprietary designs or operational data, leading to competitive disadvantage or regulatory non-compliance. The requirement for user interaction limits mass exploitation but does not eliminate risk, especially in environments where users frequently exchange VI files. The vulnerability could be leveraged in targeted attacks against critical infrastructure, manufacturing plants, or research institutions using LabVIEW. The absence of known exploits currently provides a window for proactive mitigation, but the high severity score underscores the urgency for organizations to address this vulnerability promptly to avoid operational and reputational damage.

1. Apply patches or updates from NI as soon as they become available to address CVE-2025-64461. 2. Until patches are released, restrict the opening of VI files from untrusted or unknown sources to minimize exposure. 3. Implement strict file validation and scanning mechanisms on email gateways and file-sharing platforms to detect and block malicious VI files. 4. Educate users about the risks of opening unsolicited or suspicious VI files and encourage verification of file origins. 5. Employ application whitelisting to limit execution of unauthorized LabVIEW components or scripts. 6. Use network segmentation to isolate systems running LabVIEW from less secure network zones, reducing the risk of lateral movement. 7. Monitor system and application logs for unusual behavior indicative of exploitation attempts. 8. Consider deploying endpoint detection and response (EDR) solutions capable of identifying memory corruption exploits. 9. Maintain regular backups of critical LabVIEW projects and configurations to enable recovery in case of compromise. 10. Coordinate with NI support and subscribe to security advisories for timely updates on patches and exploit developments.