CVE-2026-18445 Integer Overflow Vulnerability Resulting in an Out of Bounds Write in NI LabVIEW

Medium 6.9 Published Updated

An integer overflow in NI LabVIEW allows arbitrary code execution or information disclosure when a user opens a malicious VI file.

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-2026-18445?

CVE-2026-18445 is a medium-severity 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 an integer overflow vulnerability resulting in an out-of-bounds write recently discovered in NI LabVIEW.  This may result in information disclosure or arbitrary code execution.  Successful exploitation requires an attacker to get a user to open a specially crafted VI file.  This vulnerability affects NI LabVIEW 2026 Q3 and prior versions.

Weakness: CWE-190

Which versions are affected by CVE-2026-18445?

It affects 1 product.

Products include Ni Labview.

How do I fix CVE-2026-18445?

No fix has been published for CVE-2026-18445 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-18445 being exploited?

There is no known exploitation of CVE-2026-18445 in the wild and no public exploit code.

Sources

Also known as GHSA-wh6m-8vv3-wpp9.

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