CVE-2026-64198 Out Of Bounds Read in file handling when parsing a .DSB file in DASYLab

High 8.5 Published 3 Sep 2026 Updated 4 Sep 2026

An attacker can cause an out-of-bounds read by tricking a user into opening a malicious .DSB file, potentially leaking memory or crashing the application.

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-2026-64198?

CVE-2026-64198 is a high-severity memory corruption vulnerability in measX DASYLab, published on 3 Sep 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 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.

Weakness: CWE-125

Which versions are affected by CVE-2026-64198?

It affects 1 product.

Products include Ni Dasylab.

How do I fix CVE-2026-64198?

No fix has been published for CVE-2026-64198 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-2026-64198 being exploited?

There is no known exploitation of CVE-2026-64198 in the wild and no public exploit code.

Sources

Also known as GHSA-fgv7-3g4x-j73v.