Is CVE-2026-16233 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-16233 being exploited in the wild.

How severe is CVE-2026-16233?

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-2026-16233?

A patch was published on 2026-08-25: Patches available for LabVIEW 2026 Q3 Patch 1, 2025 Q3 Patch 5, 2024 Q3 Patch 7, and 2023 Q3 Patch 10 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-16233 attacked?

It is attacked with local access.

Am I affected by CVE-2026-16233?

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.

CVE-2026-16233: NI LabVIEW memory corruption in aligned_free function

CVE-2026-16233 · Severity: high · CVSS 7.8 · Published 2026-08-25

NI LabVIEW is a software development environment used by engineers and scientists for automated testing and data acquisition. A memory corruption vulnerability in the aligned_free() function can be exploited when a user opens a specially crafted file, leading to arbitrary code execution or information disclosure. This could allow attackers to gain control of systems running vulnerable versions of LabVIEW.

Technologies: NI Labview. Vendors: NI.

Quick answers

Is CVE-2026-16233 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-16233 being exploited in the wild.
How severe is CVE-2026-16233?: 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-2026-16233?: A patch was published on 2026-08-25: Patches available for LabVIEW 2026 Q3 Patch 1, 2025 Q3 Patch 5, 2024 Q3 Patch 7, and 2023 Q3 Patch 10 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-16233 attacked?: It is attacked with local access.
Am I affected by CVE-2026-16233?: 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

CVE-2026-16233 is an out-of-bounds write vulnerability in the aligned_free() function of NI LabVIEW. The vulnerability requires local access and user interaction (opening a specially crafted VI file). No authentication is required. Successful exploitation can result in information disclosure, arbitrary code execution, and denial of service. The vulnerability affects LabVIEW 2026 Q3 (26.3.0) and prior versions. Patches are available through NI Update Service and NI Package Manager.

Affected products

NI LabVIEW 2026 Q3 (26.3.0) and prior

Timeline

2026-08-25: disclosed: Vulnerability publicly disclosed by NI
2026-08-25: patched: Patches available for LabVIEW 2026 Q3 Patch 1, 2025 Q3 Patch 5, 2024 Q3 Patch 7, and 2023 Q3 Patch 10

References

https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/memory-corruption-vulnerabilities-ni-labview.html

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