CVE-2026-18444

Integer Conversion Vulnerability Resulting in an Out of Bounds Read in NI LabVIEW

State: Published
Severity: 6.9 Medium
Published: Aug 25, 2026
Updated: Aug 31, 2026
Reserved: Jul 30, 2026

Description

There is an integer conversion vulnerability resulting in an out-of-bounds read when loading images 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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N	NI
3.1	6.6 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H	NI

Weaknesses

CWE-195 Signed to unsigned conversion error

Affected Products

Product	Versions
LabVIEWNI	before 23.0.0Affected 23.1.0 to before 23.3.10Affected 24.1.0 to before 24.3.7Affected 25.1.0 to before 25.3.5Affected 26.1.0 to before 26.3.1Affected

References

https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/integer-conversion-vulnerability-resulting-in-an-out-of-bounds-read-in-ni-labview.html

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