CVE-2025-9189

There is an out of bounds write vulnerability due to improper bounds checking resulting in a large destination address when parsing a DSB file with Digilent DASYLab. This vulnerability may result in arbitrary code execution. Successful exploitation requires an attacker to get a user to open a specially crafted DSB file. The vulnerability affects all versions of DASYLab.

What this means for your business

It affects Ni Dasylab. It matters if your company, or a supplier that handles your data, runs it.
An attacker can use it only with access to the machine itself, without a login, but only after tricking someone into an action such as opening a file or a link.
FIRST's prediction model gives it a 0.3% chance of attack attempts being seen in the next 30 days, ranking above 20% of all known flaws.

What to do

1Check whether your company or your suppliers run Ni Dasylab, and which version. The affected versions are listed further down this page.
2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

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Scoring

CVSS: 7.8 (v3.1)
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4: 8.5
Weakness: CWE-1285
Assigned by: security@ni.com

Dates

Published: 2025-09-02
Last modified: 2026-09-03
Sources: NVD

Affected products

Ni Dasylaball versions

As listed in the NVD configuration data. Not a statement about your estate.