Overview
A potent security threat has surfaced in the form of CVE-2025-7849, a memory corruption vulnerability found in NI LabVIEW, a system-design platform and development environment for a visual programming language from National Instruments. Primarily affecting NI LabVIEW 2025 Q1 and prior versions, this vulnerability poses a significant risk due to its potential for arbitrary code execution, which can lead to system compromise or data leakage.
With a CVSS Severity Score of 7.8, this vulnerability warrants immediate attention from security teams across industries using NI LabVIEW. Its successful exploitation can significantly undermine a system’s security, putting sensitive data at risk and enabling an attacker to take control over the system.
Vulnerability Summary
CVE ID: CVE-2025-7849
Severity: High (CVSS:7.8)
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise, data leakage
Affected Products
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Product | Affected Versions
NI LabVIEW | 2025 Q1 and prior versions
How the Exploit Works
The vulnerability, CVE-2025-7849, is a memory corruption issue that arises due to improper error handling when a VILinkObj is null in NI LabVIEW. When this occurs, there is potential for arbitrary code execution. This vulnerability can be exploited by an attacker who can trick a user into opening a specially crafted VI. This action triggers the vulnerability, thus allowing the attacker to execute malicious code.
Conceptual Example Code
Here’s a simplified, conceptual example of how the exploit might work. The attacker would craft a malicious VI file that, when opened, exploits the vulnerability and allows the execution of arbitrary code.
// This is not actual LabVIEW code but a conceptual representation.
Open VI("path/to/malicious.vi");In this example, “malicious.vi” represents a maliciously crafted VI file that triggers the memory corruption vulnerability when opened.
Mitigation Guidance
The best way to mitigate this vulnerability is by applying the patch provided by the vendor. If the patch is not immediately available or feasible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. These systems can help identify and block potential exploitation attempts. Additionally, it’s recommended to monitor system logs for any unusual activity and ensure that systems are up-to-date with the latest security patches and updates.
