Ni Dasylab
CVE-2026-64198
There is an out-of-bounds read vulnerability in DASYLab due to improper validation of user-supplied data. This results in a read a few bytes past the end of an allocated heap buffer during file handling. Successful exploitation requires an attacker to get a user to open a specially crafted .DSB file. This issue affects all versions before 2026.0.0.
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 0.1% chance of attack attempts being seen in the next 30 days, ranking above 1% 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.
Fastnexa security experts
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Tell us where you run Ni Dasylab and a Fastnexa penetration tester will check whether this flaw, or others like it, can be used against your websites, apps and network.
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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-125
- Assigned by
- security@ni.com
Dates
- Published
- 2026-09-03
- Last modified
- 2026-09-22
- Sources
- NVD
Affected products
- Ni Dasylab- 2026.0, 2026.0
As listed in the NVD configuration data. Not a statement about your estate.