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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.001 (2.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Ni Labview — versions 2026, 2023, 2024
Weakness classification (CWE)
References
- www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-s… (Patch, Vendor Advisory)
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.