Integer overflow in Ni Labview

CVE-2026-18445

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.

Vulnerability class: Integer Overflow

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-18445?
CVE-2026-18445 is a medium-severity vulnerability in Ni Labview, classified under Integer Overflow or Wraparound. CVSS score: 6.6/10. Published 2026-08-25.
How severe is CVE-2026-18445?
Medium severity. CVSS v3 base score is 6.6 out of 10.