National InstrumentsCVE-2026-64203

National Instruments LabVIEW: memory corruption

High8.5CVE-2026-64203 · Published Aug 25, 2026 · updated Sep 3, 2026

There is a memory corruption vulnerability recently discovered in NI LabVIEW that may result in information disclosure or arbitrary code execution. Successful exploitation requires an attacker to get a user to open a specially crafted VI. This vulnerability affects NI LabVIEW 2026 Q3 (26.3.0) and prior versions.

National Instruments advisory

Affected versions

Package	Affected	Fixed in
LabVIEW Product	< 23.0.0	23.0.0
	>= 23.1.0, < 23.3.10	23.3.10
	>= 24.1.0, < 24.3.7	24.3.7
	>= 25.1.0, < 25.3.5	25.3.5

Details and references

CVSS 4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity from: the vendor (its own CVE record or advisory)
Weakness: CWE-125, CWE-787

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All National Instruments

Date	Advisory	Severity	Fixed in
Aug 25	National Instruments LabVIEW: memory corruption High8.5Aug 25 CVE-2026-6420123.0.0+3 more	High8.5	23.0.0+3 more
Aug 25	National Instruments LabVIEW: memory corruption High8.5Aug 25 CVE-2026-6420223.0.0+3 more	High8.5	23.0.0+3 more
Aug 25	National Instruments LabVIEW: memory corruption High8.5Aug 25 CVE-2026-6420423.0.0+3 more	High8.5	23.0.0+3 more
Aug 25	National Instruments LabVIEW: integer overflow Medium6.9Aug 25 CVE-2026-1844523.0.0+3 more	Medium6.9	23.0.0+3 more
Aug 25	National Instruments LabVIEW: memory corruption High8.5Aug 25 CVE-2026-1623323.0.0+3 more	High8.5	23.0.0+3 more
Aug 25	National Instruments LabVIEW: memory corruption High8.5Aug 25 CVE-2026-1623423.0.0+3 more	High8.5	23.0.0+3 more

Affected versions

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