CVE-2026-16234: NI LabVIEW out-of-bounds read in StringUtils Converter function

CVE-2026-16234 · Severity: high · CVSS 7.8 · Published 2026-08-25

NI LabVIEW is a graphical programming platform used by engineers and scientists to develop measurement and automation applications. This vulnerability allows arbitrary code execution or information disclosure when a user opens a specially crafted LabVIEW VI file, potentially compromising system integrity and confidentiality.

Technologies: NI Labview. Vendors: NI.

Quick answers

Is CVE-2026-16234 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-16234 being exploited in the wild.
How severe is CVE-2026-16234?
High severity, with a CVSS score of 7.8, published 25 August 2026.
Which products and versions are affected?
NI Labview 2026 Q3 (26.3.0) and prior.
Is there a fix for CVE-2026-16234?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-16234 attacked?
It is attacked with local access.
Am I affected by CVE-2026-16234?
Check whether you run NI Labview at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This is an out-of-bounds read vulnerability (CVE-2026-16234) in the StringUtils Converter function within NI LabVIEW. The vulnerability requires user interaction—an attacker must socially engineer a victim to open a malicious VI file. Successful exploitation can lead to information disclosure or arbitrary code execution with the privileges of the user running LabVIEW. The vulnerability affects LabVIEW 2026 Q3 (26.3.0) and earlier versions. NI has released patches available through NI Package Manager, Software Downloads, or NI Update Service for affected versions (2026, 2025, 2024, 2023, and 2022).

Affected products

  • NI LabVIEW 2026 Q3 (26.3.0) and prior

Timeline

  • 2026-08-25: disclosed
  • 2026-08-24: advisory

References

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