CVE-2026-16233 Out-of-Bounds Write Vulnerability in NI LabVIEW when loading VI

High 8.5 Published Updated

An attacker can achieve arbitrary code execution or information disclosure by tricking a user into opening a specially crafted VI file in LabVIEW.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-16233?

CVE-2026-16233 is a high-severity memory corruption vulnerability in NI LabVIEW, published on 25 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

There is a memory corruption vulnerability recently discovered in NI LabVIEW that may result in information disclosure or arbitrary code execution.  Successful exploitation requires an attacker to get a user to open a specially crafted VI.  This vulnerability affects NI LabVIEW 2026 Q3 (26.3.0) and prior versions.

Weakness: CWE-787

Which versions are affected by CVE-2026-16233?

It affects 1 product.

Products include Ni Labview.

How do I fix CVE-2026-16233?

No fix has been published for CVE-2026-16233 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-16233 being exploited?

There is no known exploitation of CVE-2026-16233 in the wild and no public exploit code.

Sources

Also known as GHSA-p3x9-7mrv-5rx5.

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